Ever wondered how celebs can look so fabulous one second and so foul the next? How can trend-setting celebs go from fashion icon to fashion disaster almost overnight? One day they look like beautiful Hollywood starlets and the next they are major fashion faux-pas.
TMZ looks at the bipolar fashion of Hollywood sirens Mischa Barton, Paris Hilton, Lindsay Lohan, Mary-Kate Olsen, and Sienna Miller. Click here to see the drastic diva fashion choices that leave us in awe... and leave us scratching our heads.