1. Elton John gettyimages.com Jonathan Elton Green Correct Incorrect Jonathan Elton Green Gregory Anthony White Correct Incorrect Gregory Anthony White Reginald Kenneth Dwight Correct Incorrect Reginald Kenneth Dwight Samuel Eggars Knight Correct Incorrect Samuel Eggars Knight Correct! Wrong! Elton John's real name is Reginald Kenneth Dwight. "Elton John" is an homage to Bluesology saxophonist Elton Dean and Long John Baldry. 2. Louis C.K. gettyimages.com Louis Szala Correct Incorrect Louis Szala Louis Szekeres Correct Incorrect Louis Szekeres Louis Szakacs Correct Incorrect Louis Szakacs Louis Szekely Correct Incorrect Louis Szekely Correct! Wrong! Louis C.K.'s real name is Louis Szekely. C.K.'s stage name is derived from an approximate English pronunciation of his Hungarian surname, Szekely (See-Kay). 3. Tom Cruise gettyimages.com Thomas Cruise Mapother Correct Incorrect Thomas Cruise Mapother Thomas Cruise Mapother II Correct Incorrect Thomas Cruise Mapother II Thomas Cruise Mapother III Correct Incorrect Thomas Cruise Mapother III Thomas Cruise Mapother IV Correct Incorrect Thomas Cruise Mapother IV Correct! Wrong! Tom Cruise's real name is Thomas Cruise Mapother IV. No word on whether or not Suri Cruise's real name is Thomas Cruise Mapother V. 4. Stevie Wonder gettyimages.com Stephen Wonder Correct Incorrect Stephen Wonder Stephano Ralphio Correct Incorrect Stephano Ralphio Stevland Judkins Correct Incorrect Stevland Judkins Steven Vönda Correct Incorrect Steven Vönda Correct! Wrong! Stevie's real name is Stevland Judkins. He's the eighth wonder of the world, hence his stage name. 5. Julianne Moore gettyimages.com Julianne Smith Correct Incorrect Julianne Smith Julie Anne Smith Correct Incorrect Julie Anne Smith Julia Smith Correct Incorrect Julia Smith Julianne Schmidt Correct Incorrect Julianne Schmidt Correct! Wrong! Julianne Moore was born Julie Anne Smith. As she explains, "There was already a Julie Smith, a Julie Anne Smith, there was everything. My father's middle name is Moore; my mother's name is Anne. So I just slammed the Anne onto the Julie. That way, I could use both of their names and not hurt anyone's feelings. But it's horrible to change your name. I'd been Julie Smith my whole life, and I didn't want to change it." 6. Helen Mirren gettyimages.com Helena Pyotr Correct Incorrect Helena Pyotr Alexandrina Eva Matilda Correct Incorrect Alexandrina Eva Matilda Helen Lydia Mironoff Correct Incorrect Helen Lydia Mironoff Betty Wilson Correct Incorrect Betty Wilson Correct! Wrong! Helen Mirren's real name is Helen Lydia Mironoff. And she's an ageless wizard. 7. Lil' Bow Wow Warner Bros. Pictures Ryan Gerald Gonzales Correct Incorrect Ryan Gerald Gonzales Terry Donald Ross Correct Incorrect Terry Donald Ross Chad Eric Grossman Correct Incorrect Chad Eric Grossman Shad Gregory Moss Correct Incorrect Shad Gregory Moss Correct! Wrong! Bow Wow's real name is Shad Gregory Moss. Great rapper, or greatest rapper? Oh, neither? OK. 8. Miley Cyrus gettyimages.com Miracle Grace Cyrus Correct Incorrect Miracle Grace Cyrus Destiny Hope Cyrus Correct Incorrect Destiny Hope Cyrus Diaspora Faith Cyrus Correct Incorrect Diaspora Faith Cyrus Gemini Twerk Cyrus Correct Incorrect Gemini Twerk Cyrus Correct! Wrong! Miley's real name is Destiny Hope Cyrus. Because of course it is. 9. George Michael youtube.com Georgia Stavros Stathopoulos Correct Incorrect Georgia Stavros Stathopoulos Georgios Kyriacos Panayiotou Correct Incorrect Georgios Kyriacos Panayiotou Gregory Demopoulos Correct Incorrect Gregory Demopoulos George-Michael Bluth Correct Incorrect George-Michael Bluth Correct! Wrong! George Michael's full name is Γεώργιος Κυριάκος Παναγιώτου, aka Georgios Kyriacos Panayiotou. 10. Cher gettyimages.com Sherry Zakaryan Correct Incorrect Sherry Zakaryan Sharon Bogosian Correct Incorrect Sharon Bogosian Cheryl Eskadarian Correct Incorrect Cheryl Eskadarian Cherilyn Sarkisian Correct Incorrect Cherilyn Sarkisian Correct! Wrong! Cher's real name is either Cherilyn Sarkisian, or "Divine Goddess of Pop." Take your pick. 11. Michael Caine Warner Bros. Pictures Maurice Micklewhite Correct Incorrect Maurice Micklewhite Ben Haggerty Correct Incorrect Ben Haggerty Charles Van White Correct Incorrect Charles Van White Eugene Lewis Correct Incorrect Eugene Lewis Correct! Wrong! Michael Caine's real name is Maurice Micklewhite. Fun fact: Before choosing "Michael Caine" as a stage name, he went by "Michael Scott." 12. Jon Bon Jovi gettyimages.com Jean Bon Jeauvé Correct Incorrect Jean Bon Jeauvé John Bongiovi Correct Incorrect John Bongiovi Sean Bon Jovi Correct Incorrect Sean Bon Jovi Poindexter Eisenhower Correct Incorrect Poindexter Eisenhower Correct! Wrong! Jon Bon Jovi's real name is John Bongiovi. He got reeeeeal creative with his stage name. 13. Portia De Rossi FOX / Via goldderby.com Amanda Lee Rogers Correct Incorrect Amanda Lee Rogers Mary Anne Spier Correct Incorrect Mary Anne Spier Dawn Schafer Correct Incorrect Dawn Schafer Kristy Thomas Correct Incorrect Kristy Thomas Correct! Wrong! Portia De Rossi's real name is Amanda Lee Rogers. The rest of those names are members of "The Babysitter's Club." Portia chose the given name of Portia, a character from William Shakespeare's "The Merchant of Venice," and an Italian last name. 14. Joaquin Phoenix gettyimages.com Joaquín Michaelangelo Top Correct Incorrect Joaquín Michaelangelo Top Joaquín Rafael Bottom Correct Incorrect Joaquín Rafael Bottom Joaquín Leonardo Versatile Correct Incorrect Joaquín Leonardo Versatile Joaquín Donatello Flip-Flop Correct Incorrect Joaquín Donatello Flip-Flop Correct! Wrong! Joaquin's birth name is Joaquín Rafael Bottom. He and his siblings all adopted the surname "Phoenix." 15. Albert Brooks gettyimages.com Albert Einstein Correct Incorrect Albert Einstein Isaac Newton Correct Incorrect Isaac Newton Nikola Tesla Correct Incorrect Nikola Tesla Alan Turing Correct Incorrect Alan Turing Correct! Wrong! Albert Brooks' real name is Albert Einstein. It's pretty obvious why he changed it. 16. Marilyn Monroe 20th Century Fox Norma Jeane Monroe Correct Incorrect Norma Jeane Monroe Norma Jeane Miller Correct Incorrect Norma Jeane Miller Norma Jeane Mortenson Correct Incorrect Norma Jeane Mortenson Norma Jeane McCormick Correct Incorrect Norma Jeane McCormick Correct! Wrong! Marilyn's real name was Norma Jeane Mortenson. A movie executive thought "Marilyn Monroe" was sexy, had a "nice flow," and would be "lucky" due to the double M. 17. Anne Rice gettyimages.com Walter O'Donnell Correct Incorrect Walter O'Donnell Felix O'Connor Correct Incorrect Felix O'Connor Thomas O'Toole Correct Incorrect Thomas O'Toole Howard O'Brien Correct Incorrect Howard O'Brien Correct! Wrong! Anne Rice's real name is actually Howard O'Brien. Howard. Howard? 18. Vanilla Ice gettyimages.com ROBERT VAN WINKLE Correct Incorrect ROBERT VAN WINKLE Correct! Wrong! Vanilla Ice has the least rap name ever, with Robert Van Winkle.