After the Foo Fighters capped off the final episode of the Late Show With David Letterman on Wednesday with “Everlong,” a tune very near and dear to the outgoing host’s heart, the party continued into the night. The Late Show staff, Dave Grohl and his bandmates and a bunch of the celebrities who appeared on the show to read the last-ever Top Ten list, including Jim Carrey, Tina Fey and Steve Martin, all trooped over to the nearby Museum of Modern Art to fete Letterman, who looked as if he raided pal Bill Murray’s closet before leaving the Ed Sullivan Theatre. Letterman only stopped by the MOMA party briefly and, unlike many of the staff members, the 68-year-old TV veteran didn’t look emotional at all. His farewell speech last night, while incredibly touching and pitch perfect, was notably devoid of tears, not that, knowing Dave, we expected anything different.