This Pouty Baby Grew Up to Be a Mega-Hot Musician, Model, and Actor, But Who Is He? (PHOTOS)

This pouty little cutie grew up and became a mega-rich, hot, and successful musician, model, and actor. He's also connected to a few of our reality competition shows: He's guest judged on The X Factor, made an appearance on America's Next Top Model and Dancing with the Stars, and written hit songs for American Idol's Clay Aiken and Jennifer Lopez. According to Wikipedia, he's has racked up a total of 70 number one rankings on the various Billboard music charts! And, yes, we'd dance if he asked us to dance...

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