Gigi Hadid, Chris Brown, and More Celebrities Who’ve Worn ‘Grease’ Costumes on Halloween

The original Grease movie may have premiered 38 years ago, but the characters (and costumes) have proven to be timeless — especially when it comes to Halloween. Everyone from Gigi Hadid to Chris Brown have transformed themselves into Pink Ladies and T-Birds on All Hallows' Eve, and we're kind of obsessed!

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Click through the gallery to see all the celebrities who've worn Grease-inspired outfits for Halloween.