You know who Mary-Kate Olsen really looks like? Her twin sister Ashley. Duh. You know who else she really looks like? Fiona Apple. Seriously. Check them out in the above photo.

But it's more than just the scary-thin physiques and Renaissance Faire hair that ties together the two ladies. Both the 'Criminal' singer and the 'Full House' star got their starts at a young age. Apple was just 16 when her demo tape landed in the hands of a record-company big shot; Olsen (along with her sis) wasn't even a year old when she landed her breakthrough role on the hit TV show.

And both have kept crazy busy since their '90s breakthroughs. Olsen has produced and starred in movies like 'The Wackness' and 'Beastly.' Apple has released albums with titles like 'When the Pawn Hits the Conflicts He Thinks like a King What He Knows Throws the Blows When He Goes to the Fight and He'll Win the Whole Thing 'fore He Enters the Ring There's No Body to Batter When Your Mind Is Your Might So When You Go Solo, You Hold Your Own Hand and Remember That Depth Is the Greatest of Heights and If You Know Where You Stand, Then You Know Where to Land and If You Fall It Won't Matter, Cuz You'll Know That You're Right' and 'The Idler Wheel Is Wiser Than the Driver of the Screw and Whipping Cords Will Serve You More Than Ropes Will Ever Do.' At least one of them is into the whole brevity thing.

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