You Won't Believe Olivia Wilde's Last Name!
Believe it or not, but many of your favorite stars use stage names! Everyone from Miley Cyrus, Demi Moore, Stevie Wonder, even Helen Mirren—they're not their real names! Get ready to have your mind blown by what you're about to learn, because there is going to be at least one celebrity on this list whose real names leaves you speechless. Take a look at the gallery below to find out the TRUTH about your favorite actors and musicians, then let us know what you think of the facts in the comment section on Facebook.