Brandon Routh Photo by: Jon Kopaloff / FilmMagic
What's Your Kryptonite? | Brandon Routh
Brandon Routh (Superman Returns): his girlfriend, Courtney Ford. "You bring me to my knees. You humble me," he told her.

Eva Mendes: Cheese – on a margarita pizza with crushed red pepper.

Jorge Garcia (Lost): I'm scared to death of spiders. But I also like to sometimes touch a web with a stick to see if I can make the spider move, then I'll run away screaming like a girl.

Jesse McCartney: I'm a double-shot espresso kind of guy in the morning. I'm addicted.

Loretta Devine (Grey's Anatomy): Self-doubt takes your power from you. Anytime I start questioning myself or my abilities or I let fear get in the way is no good.

Paris Hilton Photo by: James Devaney / WireImage.
What's Your Kryptonite?| Brandon Routh, Paris Hilton
Andy Samberg (Saturday Night Live): Real World marathons – especially since they started casting hot people that have sex all the time.

Kelis: Humidity and rain because it totally ruins my hair. Humidity and rain are evil.

Pete Wentz (Fall Out Boy): There's one girl from my hometown who's just able to render me completely useless in a good way and in a really bad way. I obsess over her.

David Boreanaz (Bones): Blues music – anything like that always gets me.

Paris Hilton: Sweaty guys at clubs who try to kiss me on the cheek. I hate that. It's gross.

• By CARRIE BELL, JED DREBEN, ARNESA HOWELL, MARISA LAUDADIO, LESLEY MESSER, RONKE IDOWU REEVES, JENNY SUNDEL and NICHOLAS WHITE