Celebrity Name Guessing Game Can You Guess These Stars' Birth Names?

7/18/2015 12:01 AM PDT

Celebrity Name Guessing Game -- Can You Guess These Stars' Birth Names?


One of Hollywood's worst kept secrets? Almost everyone goes by a stage name.

Don't believe us? Check out these 20 stars who adopted a fake name -- and see if you can determine what's printed on their birth certificates! 

20. Bruno Mars



19. Ben Kingsley



18. Carmen Electra



17. Demi Moore



16. Elton John



15. Gene Simmons



14. George Michael



13. Helen Mirren



12. Lana Del Rey



11. Larry King