Emma Stone

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Real Name: Emily Jean Stone

We all knew Emma Stone was cool. Now prepare to get your mind blown — her stage name is a direct homage to Baby Spice, Emma Bunton. As Stone revealed in an interview, she couldn’t use her real name (“My name was taken at the Screen Actors Guild by one of the girls on Australia’s Next Top Model”), so she thought it would be nice to use Baby Spice’s real name. “When I was in second grade I did ask the teacher on the first day of school to call me Emma because I always wanted to be Baby Spice,” she told Jimmy Kimmel. Maybe it’s time for Spice World 2 with Stone as a guest star?

Vin Diesel

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Real Name: Mark Sinclair Vincent

You didn’t really think someone could have such a cool real last name (even if he’s fast and furious), did you?! Diesel didn’t change his name for Hollywood — he did it years earlier when he was working on the New York nightlife scene as a bouncer. Apparently he did his job well, which secured him this nickname. Let’s just say we wouldn’t want to get thrown out of the bar by the future star of xXx.