Before he earned the nickname "King of Latin Pop," this heartthrob was smoldering in adolescent photos. Even back in the day, this singer had dreamy brown eyes and his signature mole.

Nowadays, you've probably rocked out to some of his radio-friendly hits, including recent collaborations with Pitbull and Sammy Adams. Although he keeps mums about his on-and-off relationship with a famous tennis star, he can be our "Hero" any day!

Did you figure out who it is? Click through to see if you're right!