Justin Timberlake had teens swooning as the cute, curly-haired blonde guy in 'N Sync, only to later campaign to bring sexy back with a solo career as well as apple martinis in The Social Network. Now, even without 20/20 vision (get it?), it's obvious that Mr. JT, who just turned 33 on Jan. 31, has still got it!
This 20/20 Experience singer isn't the only one! Take a look at the heartthrobs that are only getting better with age.KEEP READING