This material girl is in her mullet era.Madonna attends the Met Gala on May 5, 2025.Credit: Getty ImagesThe GistMadonna unveiled a major hair transformation, a bouncy mullet with wispy bangs, that looks straight out of the '80s.She paired her new 'do with a sexy pearly skirt suit and eye-popping diamond ring.The queen of pop later changed into a plunging corset, draped dress, and knit cardigan.Someone cue "Like a Virgin," because Madonna is tran…