Britney Spears, 27, stopped her sold-out concert in Vancouver on Wednesday night 15 minutes into the show claiming cigarette smoke was bothering her and the stagehands. After leaving fans in the dark for 30 minutes with hockey intermission music, Spears finally returned to the stage. At the end of the concert, Spears implored the audinece: "Vancouver, don't smoke weed!" Britney's website offered this version of events: "We want to apologize to all the fans who attended our Vancouver show tonight for the brief pause in Britney's set. Crew members above the stage became ill due to a ventilation issue." (Photo: WENN)