After taking a year off to join the True Colors Tour in support of gay rights, The B-52's are back at Wolf Trap for an annual August party. The fun, frolicking foursome with three gay members -- Keith Strickland, Fred Schneider and Kate Pierson -- are as festive and fun as ever. “Keep doing what you're doing, 'cause it's what we like,” they rightly sing on new track “Ultravoilet.” Saturday, Aug. 8, at 8 p.m. Wolf Trap, 1645 Trap Road, Vienna. Tickets are $25 to $40. Call 703-255-1900 or visit www.wolf-trap.org.