Happy 31st Birthday, Sophie Monk!

Originally one of the Marilyn Monroe impersonators at Warner Brothers Movie World, Sophie Monk shot to stardom after winning the first season of Australian reality show Popstars and joining the girl group Bardot. Now the actress and sometime radio host (she's often on 2Day FM) is LA-based and has rekindled her romance with plastic surgeon John Diaz, which means the plastic surgery rumour mill has gone into overdrive again. We've definitely seen many a beauty look from Sophie throughout her years in the spotlight — from platinum blonde locks to the dark look she was sporting at the 2010 Melbourne Cup, she's pretty much been there, done it all. So to celebrate her birthday in true Sugar style, here's a look back at her beauty transformation . . . have a good one, Soph!