As fashion A-listers begin to primp and prep for tonight's much-anticipated Met Gala, we're taking a moment to look back at some of our favorite designer-muse duos who've shown up to the ball together in the past. While the prestigious night is always a chance to see some amazing couture looks, it also serves as a sort of prom night for the fashion set - if you will. Of all the couples that walk the red carpet hand-in-hand, the ones we look forward to most are the designer-muse pairs. From Iman and Christian Lacroix in 1996 to Emma Stone and Alber Elbaz in 2012, click through for the best designer date night duos from Met Galas past. More>>