Unlikely Celebrity BFF's

Mel Gibson and Britney Spears:  Gibson and Spears bonded a while ago when he invited the pop princess to use his home in Costa Rica and offered her advice on life.

David Backham and Snoop Dog:  They are reportedly quite close.  David appearing on Snoop's show and coaching his football team in the ways of soccer.

Robert Pattinson and Vince Vaughn:  Despite their 16 year age gap, the enjoyed a guy's night out in Hollywood on April 5th.

Victoria Beckham and Katie Holmes:  They seem like a mismatch, but these two share a love of fashion and a life of fame.  That's enough to build a lifetime of friendship in Hollywood.

Ashton Kutcher and P. Diddy:  While they haven't been spotted together recently, they were photographed everywhere as a dynamic duo in the past.