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First, 2010 was the year that Lady Gaga wore THE meat dress.
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She also began the night in a heavenly Alexander McQueen gown.
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Kesha had her hair in a very 2010 quiff, complete with a dress literally made out of garbage bags.
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Drake added a pop of color with pink tassels on his loafers.
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A very fresh-faced Justin Bieber wore a black leather vest and pants.
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Cher brought the sparkle with an embellished sheer body suit and thigh-high suspender boots.
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Nicki Minaj rocked a Lura Starr two-piece, topped off with her iconic pink locks.
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Florence Welch looked dazzling in Givenchy couture.
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Selena Gomez shone like a disco ball in a floor-length metallic gown.
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Ne-Yo looked fly in many shades of gray.
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Miranda Cosgrove looked super cute in a sparkling Elise Overland dress.
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Robyn wore a sheer bodysuit with platform boots and a bomber jacket.
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Brenda Song kept it '00s with a baby-pink, fringed vest top.
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Craig Robinson wore a navy shirt with brightly trimmed cuffs.
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Justin Timberlake, Jesse Eisenberg, and Andrew Garfield kept it simple with leather jackets and jeans.
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Usher added a hint of sparkle with a skinny scarf.
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Jane Lynch gave us major Sue Sylvester vibes as she wore a floor-length sports jacket.
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Ciara was a vision in lace and feathers.
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Chad Hugo, Pharrell Williams, and N.E.R.D.'s Shay Haley rocked caps that are a sure thumbs-up.
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Finally, Katy Perry gave us a figure skater–meets–rock chick look in an asymmetrical dress and brightly streaked hair.
What was your fave look? LMK in the comments!