this is "nightline" -- tonight the buyers' nightmare. >> absolutely crazy. it's a war. >> they have done everything right. why do the families have to go to such extremes just to buy a home. >> so competitive. >> we are there for an emotional bidding war. who better to guide us through it than the shark herself. plus the rising star on a mission. ten concerts in 24 hours. we're along for the wild ride and country's up and comer, hunter hayes tries to do something nobody has ever done before. ♪ ♪ >> could there now be a feud between jay-z and his sister-in-law, solange.

with theories swirling about what provoked this caught on camera elevator attack. the new report tonight, suggesting the relationship might be on the mend. but first, the "nightline" 5 -- ♪ i need something has happened to me ♪ >> oh my tongue. >> all new friskies, a taste experience like no other in cheesy, creamy, home style or garden sauce. friskies. ♪ at my door >> and number one in just 60 seconds.

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good evening. you would think if you found your dream home and then scored a mortgage you would pretty much be a done deal, right. not in to day's housing market. it is a jungle out there. tonight we are with one family going to extremes just to put a roof over their head. our guide is a ringer, one of the stars of "shark tank" real estate veteran who says welcome to the new normal. and we have the story for our series "realty check." >> reporter: two cities, two houses, two price points, and two couples caught up in a national feeding frenzy. >> it is absolutely crazy. >> it's a war. >> reporter: the hottest real estate market in years. >> you have to be very aggressive right away. >> nobody expected home prices to go up this fast so quickly. it is so competitive. but we're back. every buyer is going bonkers. >> reporter: we headed out to spend two weeks on the front lines of the bidding wars with

the shark herself. barbara corchoran. >> not enough inventory. we don't have enough houses to go around. >> reporter: which is why this listing in highlands ranch, colorado, is the talk of the suburbs. three bedroom, three bath with vaulted ceilings and a quaint backyard. listing price, $329,000. >> a special house. the house that my mom lived in. and i want somebody who is going to love it as much as my mom loves it and as much as i love it. >> new parents, kooelt andeith brianna have been house hunting. >> multiple houses we have attempted to put offers in on. by the time we call. they're gone. >> we're getting ready to go look at five homes. >> some aren't quite right. >> i don't want to have to come up stairs to get in. maybe a little small. >> then they get to debbie's house. >> it is quiet here, huh? >> this is nice. >> it is nice. >> love the entry way. >> beautiful house.

a nice big yard. there are a lot of trees. i like this one a lot. >> outbid on two other houses already they're now prepared to fight. >> yeah, i think we are going to definitely put an offer in on the house. >> winning this isn't going to be easy. meanwhile, across the country, in this upscale new york suburb, real estate is just as hot. this ranch-style home with five bed rooms, 3 1/2 baths, gorgeous amenities and a creek running through the yard has an asking price of $1.35 million. owners john and jackie walter have lived here for seven years. but this sellers' market could not have come at a better time. >> do you have an ideal buyer in mind? >> cash. >> cash is 90% of the bids. more important than what price you bid. >> the day after hitting the market. there is an open house for brokers only. >> beautiful. i looked at pictures. i need to see this house.

>> o., perfect. >> but this buyer shows up uninvited. >> i have a huge house. i want to downsize. >> dr. sophia den, a single mother of two decide she wants this house on the spot. >> i see myself living here. i'll give more than asking price. >> thank you. >> the house has been on the market for about eight hours. >> sophia saw the house first, but -- >> i love this house. >> it's beautiful. >> meet her competition. jody and jonathan want to raise their twins here. >> we just want to be smart and intelligent. there is no question we really like this house. >> they also decide to putten a b -- put in a bid. sophia's bid throws them out of the running. a third bidder swoops in with an even hyperoffigher offer. it looks like it is over. they submitted offers. they have a clear winner. sophia isn't taking no for an

answer. over the next three days she ups her bid twice. that's the winning strategy. we meet up with her as she signs the contract. >> they kept making people bid until the last minute. so, until she signs, she can, technically still ask for more money. i hope that i have satisfied the greed for now. >> john and jackie walters say they were only being fair for all parties involved. in the end, sophia paid more than $100,000 over the original asking price. >> when you have a white hot market that you have now. you have to really put your belly up to the bar, go and reach farther than you ever thought you would have to. >> this house. >> reporter: back in denver, brianna and keith are excited to put in a bid for their denver dream home in highland's ranch. >> we are going to offer $330,000. >> and our decision, we hope we get the house. >> reporter: to edge out the competition they add a personal touch to their bid.

>> so we sent a letter over talking why we absolutely love the house. >> we really think it is just perfect for us. rider included. >> fingers crossed. if not, i don't know what i will do. >> for a letter to be effective it should be short and sweet and hand written. >> reporter: coast to coast these happy buyers all seal the deal with emotional pleas. >> we would be so honored to raise our future family here. >> we hope you will choose us to preserve and cherish your home. >> we are a newly married couple searching for a him to start a family in. we feel we found that in your house. >> time to find out if the letter gave them the leg up? they think they got a pretty good shot. >> we should hear pretty soon now. >> three offers. we narrowed it down to the three. >> so we are all anxiously waiting for a phone call. >> a family with a baby that they sent adorable pictures and -- and really -- nice

letter. ♪ ♪ >> do you think it is her? >> hi. it is sabrina. how are you? >> hey. >> i wanted to get back to you with regard to your buyers offer on english spare rrow. unfortunately we have not selected your offer the i know that they're going to be sad. >> you didn't get the news you were hoping for? >> we didn't. >> how does that feel? >> a pretty big letdown. we were pretty convince weed had a good shot this time with this house. >> reporter: they have decided they will take some time off before continuing their search. just a few days later in scarsdale, new york, jody is out on the house hunt again. and after being outbid on yet another house, jody find this charming four bedroom colonial with an asking price of $1.279 million. >> i called joanne, our realtor. i want to see this house right now.

we offer, ask, and we got it. >> right there. >> we were the happiest ever. >> reporter: finally after seeing approximately 40 houses, a victory for jody and jonathan. tell me how today is? >> super excited. i think this is our dream house. we know this is going to be a home that we will fill with a lot of love and happiness and good memories. >> for "nightline," in scarsdale, new york. up next here on "nightline" -- one rising country star, 24 hours, and 10 concerts. can the singer hunter hayes set a new world record? even get through the day. so i was honest with my doctor. i told him i'd been feeling stuck for a long time. he said that for some people, an antidepressant alone only helps so much and suggested we add abilify (aripiprazole). he said that by taking both, some people had symptom improvement

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two hours ago when the twitter verse learned we were going to do the next story on a young country star, hunter hayes, a tsunami of messages from teens and tweens saying they would stay up past their bedtime to watch. not that we condone such behavior the a sign how popular this guy is. tonight you'll see why, here is my "nightline" co-anchor, juju chang. >> reporter: ten cities, ten concerts. in less than 24 hours without so much as a red bull. this 22-year-old country star is trying to break the world record for the most concerts in one day. >> five, four, three, two, one! >> "nightline" is riding along with hunter hayes for a

guitar-strumming, gut-busting race against the clock. you can say he is a byoung man n a big hurry. that's him jamming on the accordian at age 6 in the movie "the apostle." hallelujah. >> reporter: a prodigy who can play 30 musical instruments and write his song like "i want crazy." ♪ i don't want easy i want crazy are you with me baby let's be crazy ♪ >> reporter: his debut album went platinum. industry insiders see him as a legend in the making. >> this is my home. this is where i live. this is definitely the dream. you snow -- you know? just to be here and get to do what we do, you know? i just hope i got to keep doing it. the only request, the only thing that weighs on my mind, what can i do to keep getting to do this?

>> reporter: as the opening act on taylor swift's tour he became an instant favorite amongst teenage girls. he is surprisingly humbles. in some ways he could be the anti--bieber. >> you play every one of these? >> not every one of these. this has got in a bit of control. just being in this room period is a droom coeam come true. that means we get to go on an arena tour now. i always dreamed of putting on a tour. >> timed to the release of his second album "story line" hayes set his sights on a guinness world record, not just for glory, but for a cause. >> we are doing it with child hunger. getting to spread the message about something we believe in. >> reporter: hayes will embark on ten concerts. boston to philadelphia, in just 24 hours. we will be with him every step of the way. >> i don't know how you prepare or if you really prepare for something look this. you just kind of. got to roll with the flowen something like this. >> reporter: on hand the entire

time, official time keepers from "guinness." >> as the official timekeeper on the attempt it is important for me to measure that hunter does play for at least 15 minutes. i will be at every show ensuring those 15 minutes are met. >> reporter: it kicked off bright and early in times square on the set of "good morning america." >> trying to break a guinness world record for most concerts in a single day. here he is now. ♪ ♪ >> reporter: right after the "gma" gig, he hopped a plane to boston for concert number two. >> what's up, y'all? >> reporter: it is 11:30 a.m. on a school day. but there are huge crowd of young fans everywhere. ♪ ♪ >> reporter: mouthing the word to each and every song. >> we started in new york, and in providence, then new london next, and pull it off, we are going to stanford after that. >> are we ready to make some

noise? >> reporter: mother daughter duo is following hayes in concerts across three states. we ran into them, two shows later in connecticut. >> we made it. we follow. we followed you on the road. >> that its your first cup of coffee? the whole time? >> reporter: you would think hayes would guzzle coffee or energy drinks he says the adrenaline of performing is his drug of choice. you look like you have so much energy you don't look tired. >> great, that's my secret goal. i wanted somebody to say something to that effect. >> reporter: just an act or feeling that way? >> no, how i feel. when we get on this stage, natural adrenaline. something that happens when the fans are in the room. >> reporter: it is 10. 30. p.m. his 7th concert. the ven ue is still jam packed. ♪ ♪ >> reporter: more amazingly the tour is running ahead of

schedule. >> how is your voice holding up? are you feeling it, the strain? >> i have a lot of allergy issues. ten cities, ten climates. you go through that in 24 hours you will experience things you never experienced in your life. i still have a voice. i am able to talk. able to hit some notes i didn't think i would hit at this point. >> reporter: 2. 30. in the morning in new jersey, a very excited crowd inside waiting for hunter to arrive. >> you guys ready? see what i mean. >> reporter: the venue appropriate, the historic stone pony. it is 4:30 in the morning. hunter finishes playing concert number nine. ♪ ♪ [ cheers and applause ] the guinness records official has the final word. >> on behalf of guinness world record, we want to say congratulations, you have officially broken the record for

most -- [ indiscernible ] [ cheers and applause ] >> reporter: you just broke the world record. how are you snelg afeeling? >> feeling good. feeling good. just broke the record. number 10? >> this is just jam. >> reporter: finally in philly, hayes plays his last show. ♪ ♪ at least for today. for "nightline," juju chang, in philadelphia. [ cheers and applause ] up next here on "nightline" with the internet abuzz over their caught on camera elevator dustup, what jay-z and his sister-in-law solange did today. what it may say about the state of their relationship. >> announcer: abc news "nightline" brought to you by viagra.

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there is news about two of the key players in the story that has social media and the gossip rags ablaze. that caught on camera elevator punching and kicking attack, launched by beyonce's sister

solange against jay-z with beyonce in the middle. what were the two combatants doing out in public together today? with theories swimmrling like m, what provoked, solange to attack her brother-in-law, jay-z in an elevator. is the music first family trying to change the narrative. according to tmz, jay-z and solange were seen jewelry shopping in manhattan. sources say they left without buying anything. but showed no signs of tension. it is a very far cry from the duelling duo seen here in the video that launched a thousand theories. the music industry titans, dressed to the nines for a met gala after-party, until something happened that clearly sent solange into a fury. >> what appears to happen, beyonce's sister takes off and starts beating on jay-z. jay-z's security guard hold her.

the elevator opens and they all go their own ways. very bizarre. >> reporter: solange is not known for stepping into her sister's spotlight. an indy darling who cultivated her distinct career with hits like "losing you." they came to a separate scene than the pop queen bee. her colorful style may land her on vogue's best dressed list. she does it her own way, rocking natural hair, choosing sexy over safe. now the two sisters who grew up close are facing an onslaught of rumors about the real story behind the fight. >> beyonce and solange are really close, up to this point we haven't seen any altercations they have defended each other with media. this will be very interesting between solange and jay-z. >> reporter: sibling rivalry or something more. some are reading the tea leaves into

♪ don't be jealous >> i suspect mthere will be mor in the coming days. tune in to "good morning america" first thing in the morning. we are online 24/7 at abcnews.com. thank you for joining us. good night.