CARLY SMITHSON
Season 7

Carly struggled with her look from her audition all the way to that brutal smackdown Simon delivered about chastising her stylist over her Dolly Parton Week getup. But when you compare the casually attired barmaid at Carly's audition to the glamorous young woman in the plum-colored dress on Mariah Carey night, it's clear the Irish songbird made more fashion progress on her Idol run than she ever got credit for. Well, at least until we wrote this gallery!