Poor imitations
Celebrity impersonators rarely look like the celebritites they're impersonating. If there's any resemblance it's usually exaggerated, like a creepy funhouse mirror. And it's kinda sad, like they missed having real fame by half a chromosome (i.e. Don Swayze.) Can you tell who these people are impersonating?...

Bonus links:
Celebrity pantomime!
Fame makes you big headed

Answers below...

Top L to R: Madonna, Jack Nicholson, Kelly Osbourne
Bottom L to R: Johnny Depp, Angelina Jolie, Sylvester Stallone

(Photos via splitting-images.com and lookalikes-susanscott.co.uk)