July 11, 2007 | Hotties

Whose bum is it?

Let's see if you can tell your celebrity asses from celebrity assholes. This sweet tushie has been around for 34 years, appearing in a wrestling singlet, a speedo, and, most recently, Bob Barker's pants (the latter when he auditioned to replace the TV icon on the "Price is Right.")

From child actor to adult star, he avoided many of the pitfalls of growing up on a hit TV show.

If you guessed Mario Lopez, you're right! He played a high school wrestling champ on "Saved by the Bell," donned a bathing suit to play gay in "Breaking the Surface: The Greg Louganis Story," and most recently auditioned to host the "Price is Right." Not truly A-list here, he can still make a special appearance on our TV set -- or in our shower stall -- anytime he likes.

And watch this to see Mario, and his boys, in action!