Britney Spears stormed off stage because the arena was too smoky last night (April 8, 2009).

The “Toxic” singer, who is a smoker, had only performed three songs during her show in Vancouver, Canada, when she walked off for over 40 minutes.

Shocked concertgoers were then told the concert would not continue if people continued to smoke cigarettes and marijuana in the arena as it was “unsafe” for Britney and her performers.

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