Last Sunday Christina Aguilera slipped up a line of the national anthem. A week later at last night's Grammy Awards, she actually slipped and nearly fell during a tribute to Aretha Franklin. And fresh off his Super Bowl win, Green Bay Packer Clay Matthews appeared with GLEE's very own Lea Michele to introduce Lady Antebellum. It was the professional actress Michele who flubbed her line, saying "wimmers" instead of "winners." Even an infusion of a record-breaking Super Bowl couldn't save a mess of a Grammy Awards. Check out a video of Clay Matthews after the jump.