Mary-Kate Olsen + Fiona Apple – Celebrity Doppelgangers

They're creepy and they're kooky, mysterious and spooky, they're all together ooky, the Olsen family ... and apparently their long-lost sister Fiona Apple. (Songwriters we are not.)

Mary-Kate Olsen and, by default, her sister Ashley got their start on the family sitcom 'Full House,' which launched them into a career of twin-related enterprises, the most recent of which has involved their award-winning clothing lines. (Believe it or not, the same girls known for dressing like bag ladies themselves design some pretty chic, kickass clothes for other people.)

Singer/songwriter Fiona Apple launched to fame with her Grammy-winning 1996 album 'Tidal.' She later released a 1999 album with a title so lengthy it was shorted to simply 'When the Pawn...' and wound up in the Guinness Book of World Records as the longest album title ever. After a too-long hiatus, her fourth studio album finally dropped in 2012.