The Metropolitan Museum of Art's annual Costume Institute Gala is the perfect opportunity for Hollywood's biggest stars to take risks and be fashion-forward. No need to hold back at this event. Anything goes! Especially with this year's theme, "PUNK: Chaos to Couture."
The ten best looks from Monday night's affair (including JLo's, above):
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| Cameron Diaz's Stella McCartney cobalt number might hurt you. Look at that spiked belt! Beware. | 
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| Anne Hathaway (in Valentino) opted for a bleached blonde bob,  "ripped-up" sheer and this season's Red Carpet favorite: the sideboob.  | 
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| Channeling her inner-punk is not very hard for Rooney Mara  (in Givenchy Haute Couture). Although this look is more couture than chaos.  | 
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| The always fashion-forward Kate Bosworth didn't disappoint in this gorgeous beaded hot-pink Balmain dress.  | 
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| Loving this black-and-white striped J. Mendel gown worn by model Chanel Iman.  Would have been cool though, if she wore some punk-inspired make-up.  | 
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| Only the Queen of Cool (aka Gwen Stefani) can pull off this Maison Martin Margiela  dress. A faux hawk would have completed the look.  | 
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| Christina Ricci rocks the taffeta and asymmetrical hemline  in this Vivienne Westwood punky plaid gown.  | 
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| Stacy Keibler looks kinda futuristic punk in this Rachel Roy studded mini. | 
And the night's ten worst looks...
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| Beyonce's Givenchy by Riccardo Tisci gown with paisley print and matching knee-high boots = tacky not punky.  | 
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| The usually over-the-top Nicki Minaj played it safe in this rather plain navy blue  Tommy Hilfiger gown. Totally underwhelming and a total #punkfail.  | 
















