Who knows if Christina Aguilera will keep her rebound around longer than Kate Winslet did, but a few things are certain: He's an upgrade from Samantha Ronson and Jordan Bratman.

Christina met Matt when he was a set assistant on her new movie, Burlesque. After Christina performed at the American Music Awards, rocking her perky gut - Spanx can be a bad thing - she and Matt were spotted leaving her hotel, which is where the photo above was taken.