Nicki was the “surprise” guest at the Vogue Charity Show tonight…although she kind of let the cat out of the bag early. “Dear Barbz, who knew wen I gave anna wintour a s/o in “muny” she’d b calling me 2 perform @ a vogue charity event. Lmao. Headed there now :),” she tweeted while en route. I spotted a couple pics of the HB event. The one above cracks me up because her hair looks like a piece of the bush! LOL hit the jump to see her on stage.