♪ doo, doo, doo ♪ ♪ pow, pow, pow, pow ♪ ♪ pow, pow, pow, pow ♪ ♪ this is that ice cold ♪ ♪ michelle pfeiffertown funk." you're looking pretty cool there. >> trying to. >> why did you decide to launch your career on youtube? >> for me it was accidental. because i sort of started when youtube was still a new thing and people weren't necessarily seeking out attention on youtube or to go viral. and so it was -- i put up a video for a contest because it was the requirement for the contest to sing a song, put it online, and that was your entry. and it got a little bit of exposure, more than i intended. nothing crazy. and then my friend convinced me to put another video up and that kind of went all over the place and suddenly i had, you know, a million people twachg and i had an audience and an outlet to pursue music. it kind of provided me this opportunity to pursue something i didn't have an opportunity to do before. >> how much time do you spend making these sxwroids what have you learned about what you need to do as a youtube performer to keep an audience engaged and get new viewers? >> it depe

. ♪ michele pfeiffer that white gold ♪ >>> that was the first lady showing off some cool moves when she dance-off to "uptown funk." and mrs. obama behind the #gimmefive campaign which asks folks all across the country to show them living a healthy lifestyle. we'll show you who else got on board. ♪ don't believe me just rock ♪ >> you know -- >> she's doing it. >> that song makes me feel like i can dance. but i can't. >> you can do it. >> you can do it. >> coming up on "gma" we'll see paula dance. see her do that dance. >> please, no. >> okay. now i'm in trouble. >>> actually coming up on the show we'll do something completely different. we'll examine an explosive new documentary taking a very close look at the church of scientology which counts among its members tom cruise. why the church is so angry about this new documentary. that's coming up, but first here, a murder mystery in texas. police in houston appealing to the public this morning for help. >> the death of 50-year-old nurse edie sax, it was initially tout to be an accident but now detectives believe it was murder. police say e

. ♪ michelle pfeiffer that white gold this one for them hood girls ♪ ♪ them good girls great masterpieceeams come true. >> happy birthday, grandpa. >> we're celebteg our 50th! >> not me. >> shoutout to the theater. >> from bg to nyc. >> i'm on tv! >> future reporter. now back to you. ♪ break it down ♪ >> such good stuff. thank you to our producer who puts that together. she does an amazing job. happy she's back. she was out a couple weeks. >> she looks like she's pretty good. >> saturday morning, march 7th 2015. starting to warm up here. we'll change the topic. >> something to keep his mouth shut. >> that was one of those times. >> yes. >> one of those times. >> nice crowd with us. >> i agree sheinelle. >> thanks for bailing me out. >> still to come in this half hour -- >> a look back at one of the most important days in the civil rights movement. i headed to selma this week to talk to some of the people who live there now about bloody sunday and what it means to them. >> then i have a question for all of you. of course we spring forward tonight. perhaps you've heard. do you know why we