Kelsey Grammer can't wait to marry Kayte Walsh, which explains why he sent out the invites to the upscale affair before he was divorced from his third wife, Camille. TMZ got its hands on the menu for the $100,000 event which includes lobster, short ribs, and ginger prawns. It will be held this Friday at the Longacre Theatre, where Kelsey performed in "La Cage aux Folles." A source told The Post that the room "will be decorated all in white, including a white cake. There will be a very tight guest list, and they won't allow cameras in."