Sometimes the celebrity wax figures at Madame Tussauds are so realistic that it's hard to tell them apart from the actual person.

Brad Pitt and his fiancee Angelina Jolie recently got great new wax figures in London's museum in honor of the actor's 50th birthday. However, the power couple's previously unleashed wax figures in Madame Tussauds in Hollywood were just as fascinating.

But, they aren't the only celebrities to get lifelike wax figures. Johnny Depp's wax figure at the museum in Los Angeles, Calif. looks almost identical to the actor.

"The Johnny Depp wax figure at Madame Tussaud's is so life like I felt compelled to grope him just to see if..." tweeted one user.

X Factor judge Simon Cowell's is just as precise.

"We met Simon Cowell today :) not really, it was his wax figure, but it looks just like him," tweeted another user along with a photo.

Scroll through the gallery to view some of the best celebrity wax figures.