Emma Stone was actually born Emily Jean Stone but changing it wasn't her choice. The actress revealed that she was forced to change it when she went to join the Screen Actors Guild because there was already another Emma Stone enrolled.
“Well, I was 16 when I found out at SAG I couldn’t have my own name,” she tells W magazine.
“So to ask a 16-year-old to pick a new name is really an interesting process, because I was like, ‘I’m going to be Riley. My name is going to be Riley Stone.’ And so my name was Riley Stone for about six months and I did a guest spot on Malcolm in the Middle and one day they were like, ‘Riley, Riley,’ and I had no idea who they were talking to and they were like, ‘Hey, hey come on we need you on set.’ And I was like, ‘Oh I’m not Riley, I can’t be Riley.’”
She finally settled on Emma because it was close to her real name, and people mostly call her M anyway, but she does admit that she would love her real name back.
“I would love to get her back.”
Gigi was actually born Jelena Noura Hadid. Gigi is a nickname her mother gave her when she was little.
So it turns out Taylor Swift's ex beau isn't technically called Calvin Harris at all; his real name is Adam Richard Wiles...
Oscar-nominated actress Rooney Mara is actually called Patricia Mara. Rooney is her middle name, and it was her mother's maiden name.
Blake Lively was born Blake Ellender Brown.
Diane Kruger was born Diane Heidkrüger – she shortened it when coming to Hollywood.
Kit Harrington was born Christopher Catesby Harrington.
Tilda Swinton was born Katherine Matilda "Tilda" Swinton.
Olivia Wilde was born Olivia Jane Cockburn.
Miley Cyrus was born Destiny Hope Cyrus.
Demi Moore was born Demetria Guynes
Tina Fey was born Elizabeth Stamatina Fey.
Natalie Portman was born Natalie Hershlag.
Helen Mirren was born Ilyena Lydia Mironov.
Iggy Azalea was born Amethyst Amelia Kelly.
Jamie Foxx was born Eric Marlon Bishop.
Julianne Moore was born Julie Anne Smith.
Portia de Rossi
Portia de Rossi was born Amanda Rogers.