at the end it's very emotional. ♪ ♪ i got an elastic heart." >> reporter: maddie ziegler first woweden recreating it live on "jimmy kimmel." sia singing in the corner with her back to the audience. ♪ temperatures rise ♪ >> reporter: last year the 39-year-old telling abc news she's uncomfortable in the spotlight. >> i've been writing pop songs for pop stars for the last couple of years and have become you know friends with them and see what their life is like and -- that's not just something i want. >> reporter: now the singer who hoped her video would pro-smoke emotion finding herself engaged in controversy. >> abc news has reached out to shia laboeuf and maddie ziegler and her family but they declined to comment. this video also receiving a lot of support from people online calling it deep and beautiful. it's not been out for 48 hours ye more than 13.5 million views on youtube, guys. >> a lot of people talking about it. thank uyou. >>> some of the best bargain as valuable this month. what you should be buying right now and what can wait. >>> fun in the frigid cold? ♪ freeze frame no

a young girl named maddie ziegler but it appears maddie may be replaced. >> that's because of a new tweetm sia that reads, if you have an l.a.-based 8 to 12-year-old who wants to be on tv with me tweet me videos of them lip-syncing "elastic heart." >> you age out of that role. how old is this young lady. >> so funny you should ask. i don't think i could pass for an 8 to 12-year-old. not that i would want that but it does require dance moves, it seems. >> it does? >> to sing to ad lib. >> that's your thing. you don't know. we have a multitalented young lady here in reena ninan. >> thank you. >> she does it all. >> thank you. >> not just a fantastic journalist. stick around for some of these commercial breaks. you wouldn't believe what happens. >> but i don't twirl. for some of you, your little news is next. >> for everybody else we'll be back with your "friday funnies." "sheesh, i wish i'd looked some more." that's why walgreens makes it easy to switch your prescriptions and save money. just stop by. and leave all the legwork to us. switch your prescriptions to walgreens where you could sa

. >> facing off against "dance moms" star maddie ziegler.cia's "elastic heart." >> i think she did "chandelier." just has that vibe. >> wait. can't we see more? that was so good. please. no i guess not. >> we have just been denied! but we can do "pop news" this morning and we have some scientific proof -- do you hear that -- i'm being very serious today. proof that beethoven may really have composed his music from the heart. scientists know beethoven was deaf which is remarkable in and of itself. now researchers at the university of michigan and university of washington say rhythms found in some of beethoven's most famous works follow a regular pattern which actually mimics an irregular heartbeat giving evidence to the theory that he had cardiac arrhythmia. his work cav tina for a string quartet in b flat major has a sudden unbalanced rhythm that why do you laugh? that mimics shortness of breath and cardiac arrhythmia and while it's impossible to prove he had a heart condition, this shows unquestionably that -- go ahead, come on, prompter. h

much buzzed about video, showing a shirtless 28-year-old shia lee buff and 12-year-old dancer maddie zieglerys i apologize to those who feel triggered -- or feel triggered by elastic heart my intention was to create some emotional content not to upset anybody. i saw the video. i didn't click on it but i saw stills of it. it was a little like uh. but art and, obviously, her parents approved of the video, the 12-year-old. >> she was also the dancer in chandelier that song right? >> she's from "dance moms" the popular show there as well. >> do you have anything happier? >> no. i'm going to keep the hits coming apparently. another bachelor couple bites the dust. full of joy today. despite being all smiles at the premiere of "the bachelor," bachelorette, andi dorset and her fiance parted ways. the two called it a sad split. splits always are. we will continue to be good friends and have nothing but great things to say about each other and. >> i'm going to end this on a happy note. >> banana split. >> what's natalie's twin doing here? >> huh? >> okay. we're about to meet her. >> maybe. >> one of t