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Emma Stone wasn't always Emma Stone.
While you may already know that Emma is the moniker the Easy A actress, born Emily Jean Stone, chose to use professionally as a now well-renowned Hollywood star, she originally tried out a very different stage name before settling on Emma.
Stone, 36, stopped by The Late Show with Stephen Colbert on Wednesday (October 22), where she was asked if there any names "in competition with Emily" when she was first starting out, per People.
"Not only was it in competition, but I actually adopted a stage name for, I would say, like six months," she said. "Because the Screen Actors Guild, it's like the Business Bureau. You can only have one person with that name."
Because there was already someone named Emily Stone registered with SAG, she decided when she was 16 years old to be Riley Stone instead, which she said was "a beautiful name" that ultimately didn't work out because it was too different from her given name.
"I did an episode, like a guest part, on Malcolm in the Middle, and they kept going like, 'Riley! Riley!' And I had no idea who they were talking to. Truly. And I was like, 'I cannot be Riley,'" she explained. "Like, it's such a... It came out of nowhere. I was just like, 'Cool name. I'll just be Riley.' So I then changed it to Emma because it's close enough to Emily."
Stone, who previously revealed she took inspiration for her stage name from Emma Bunton of Spice Girls fame, explained last year that she would be glad to be known by her real, legal name.