Britney Spears cracked her whip at some unruly fans during her recent show in Vancouver. Apparently, some of the folks up front were toking and it got too smoky for Brit and her crew. While we all know Brit’s no stranger to the ganja, she got pissed and cut the concert short. Moral of the story? Get your smoke on during the Pussycat Dolls opening act and stash that shit for Miss Brit’s show.