credit: getty images

Ellen was talking to Cameron Diaz about Diaz's first job in Hollywood, which was on the set of 'The Mask,' with Jim Carrey.

Diaz said she turned 21 on the set of the movie. And it was creepy to watch Jim Carrey take off the mask makeup.

While she is telling the story, Ellen has a guy dressed as 'The Mask,' come up behind her, and he scares Diaz silly!