Patrons at Moody's Bistro and Lounge in Truckee, Calif., nearly choked on their ahi tuna when Paul McCartney took to the stage last night for an impromptu performance. Backed by a jazz trio, the former Beatle — who was vacationing in the Lake Tahoe area with wife Heather Mills — sang "Don't Get Around Much Anymore" and "Going to Kansas City." McCartney apparently dined and performed at the bistro last year, too.