look, there is a lot of eye candy.

but then her boyfriend toby had an idea. post a video guide of exercises so followers can work o with her. >> it was pro 2 1/2 years agomaybe. >> then you checked your notifications, four million followers. >> i was like, oh, my god. >> blew uovernight. >> she is now 24. she and toby are going strong. >> we are boyfr girlfriend for 3 1/2 years. yes, we live together.

>> i believe it. i've been watching it myself. it completely transformed charlie's life. now he's working with megan trainor and selen gomez. we talked about the next big thing. >> okay. now you gave me a little bit of a scoop here that i hav go with. music video withselena. what kind of ideas are you throwing around there? obviously with megha things got steamy. let's >> so what kind of rap are we going to go with?

you can and pushups. you should be feeling it. jump back in. stanup. all right. >> and how many of these am doing? >> 15. >> what number are we at? >> you're on five right now. >> just felt like15. so reality fitness show in her future? we asked her. she says she hasn't about it yet. but we bet there is producers watching right now who are thinking about it. take it easy take it easy >> that is the v first hit

yes, we live together. this he's my business partner. >> the fitness app called sweat with kayla and prescri workouts. she has more followers than tracy anderson. >> tell us about your workouts. >> h intensity, 28 minutes. it's sogood. you have four exercises, you have seven minutes to do the four exercises as many tim as you can and pushups. you should be feeling it.