. >> they're part of an acapella group from boulder, colorado.ded when life gives you bad weather, we're going to sing. >> they also break into "oh holy night." ♪ >> "we three kings." ♪ >> other airports ought to take this into consideration and think about having carollers and acapella groups to come perform because it gets people in a good mood. >> orangutan plays ukulele. ♪ >> here's something every single mom says, eat your vegetables, clean your room! >> now a video of all the things moms doesn't say. >> it's called [ bleep ] things mom doesn't say. >> never mind, maybe tomorrow. it will be better. >> i'll doubt it. here is a hundred. >> here is my cigarette. >> you've done enough. >> we wish. >> that's the one thing i always wanted my mom to tell me. >> the accents make this better. >> don't study all the time, your heads are going to hurt. >> don't you dare come home sober. >> that's great. every mom you could literally be going five miles under the speed limit and they're always telling you to slow down. >> that's my favorite. slouch a li

the acapella group behind it. >> beautiful shot of times square this morning as you rise and shine. we have a story for you a texas couple lost a son serving in afghanistan. they know the holidays can be hard for families so they decided to give thanks to their son and other fallen soldiers by placing wreaths on the headstones of those buried at the dal at thalas fort worth na cemetery. >> we have over 7,000 wreaths for the 35,000 web sites at the cemetery. >> a fun day of fishing turned into a nightmare. the boy's grandmother dove into the bond three times. a firefighter on the scene describing how she saved the boy. i found him on the bottom and put him over my shoulder: >> he was rushed to the hospital giving continuous cpr the entire way. the boy will make a full recove recovery>> it was created to augment security services to stand guard from nightfall until dawn breaks. it include a video camera thermal imagining sense tors radar and range finders. >> an acapella group of little drummer boy going viral. take a listen. ♪ >> it features 5 singers. one gives a beat. it has 6 mill

. ♪ come, they told me, a newborn king to see ♪ >> they are very popular acapella group, all kinds of videos or youtube. every video they put out now goes viral. this is no exception. ♪ before the king, ra ra-pa-pa-bum ♪ >> it a new creative take on christmas. if you have don't want to turn on a radio station and listen to the same songs all over again, you can buy their christmas album,ptx delu edition available on itunes. ♪ ♪ >>> youtube fine man ed has a message for all of thus holiday season. that message is don't be a douche this holiday and gives as you free lesson on how to follow these lessons. >> google glass, tell me where i can find that black coat. >> what black coat? mean? >> you talking to me? >> i'm on google glass. >> yeah, he's wearing a google glass as he walks around this mall in philadelphia and talking to people and then correcting them, oh, no, i'm talking on my google glass. >> why is that? >> what? >> no, i'm on google glass. i'm having a session. thanks. >> i was talking on google glass. that's what i thought. >> price comparison. what? >> what are you pricing

. >> what started off as a college acapella group at indiana university turned into a national themeiral. >> that's right. after that the guys from straight no chaser has shared the stage with the likes of paul mccartney and cee lo green. they are singing "wonderful christmastime" off their new album called "under the influence: holiday edition." >> nice. >> here they are. ♪ ♪ the mood is right the spirits up we're here tonight and that's enough ♪ ♪ simply having a wonderful christmastime the party's on the feelin's here that only comes this time of year ♪ ♪ simply havin' a wonderful christmastime simply havin' a wonderful christmastime ♪ ♪ the choir of children sing their song ♪ ♪ ooh ooh ooh ♪ ooh ooh ooh ♪ ooh ooh ooh ♪ ding dong ding dong ♪ ding dong ding dong ♪ ah ♪ woo the word is out so lift your glass oh, don't look down ♪ ♪ simply having a wonderful christmastime we're simply having a wonderful christmastime ♪ ♪ the party is on the feeling is here that only comes this time of year we're here tonight and that's enough ♪ ♪ christmastime ♪ simply having a wonderful christmastim

so earlier today, me, miley and the roots got together and recorded an acapella version of "we can'tcan say what we want ♪ ♪ it's our party we can love who we want ♪ ♪ we can kiss who we want we can sing what we want ♪ ♪ go miley ♪ red cups and sweaty bodies everywhere ♪ ♪ hands in the air like we don't care ♪ ♪ 'cause we came to have so much fun now ♪ ♪ bet somebody here might get some now ♪ ♪ if you're not ready to go home can i get a "hell no" ♪ ♪ 'cause we're gonna go all night till we see the sunlight all right ♪ ♪ so la-da-di-da-di we like to party ♪ ♪ dancing with molly doing whatever we want ♪ ♪ this is our house this is our rules ♪ we can't stop we won't stop can't you see it's we who own the night ♪ ♪ can't you see it's we who 'bout that life ♪ ♪ we can't stop we won't stop ♪ ♪ we run things things don't run we ♪ ♪ we don't take nothing from nobody yeah, yeah yeah ♪ ♪ ♪ to my home girls here with the big butt shaking it like we at a strip club ♪ ♪ remember only god can judge ya forget the haters 'cause somebody loves ya ♪ ♪ everyone in line in the bathroom trying to get a l

. >>> the popular acapella group pentatonix burst on the scene back in 2011. morning to all of you.booing in the top te. pentatonix, guy, good morning to all of you. li let's start with the name. it means -- >> it comes from the five note scale and there are five of us. >> we've been listening to you rehearse a little bit. you can believe the ride you've been on over the last couple years? two years ago nobody knew who you were. and now you have these two albums i just mentioned in the top ten on billboard's top 200. what has it been like for you? >> it's been a the crathe crazi any ever. it's been nonstop. but we're all living out our dream for sure. >> you're about to go on tour. looking forward to that? >> absolutely. >> and what will you sing? >> hey mama. >> okay. ladies and gentlemen. pentaton pentatonix. ♪ ♪ ♪ ♪ ♪ ♪ ♪ ♪ [ applause ] >> pentatonix. thank you, guy, very much. and ladies. good luck on tour. and you can catch "the sing-off" tomorrow night here on nbc. up next, the exercise cure, a pre-drug that can treat anything that ails you. but first, t