Britney Spears: "Don't smoke weed"

Britney Spears is apologizing to fans after smoky conditions at a concert in Vancouver, Canada, led to a 30-minute delay in her show, The Associated Press reported.

Britney Spears walked off stage three songs into a sold-out show in Vancouver because of smoke.

A voice announced, "The building is awfully smoky. It is uncomfortable for everyone on stage, including Ms. Spears.

Please extinguish all cigarettes this is a non-smoking building, and the show will resume when the smoke on the stage is cleared," the Vancouver Sun reported. A half-hour later, the show did resume.

After she returned and ended the show, Spears — who has been to rehab and is on the comeback trail after a long stretch of troubles — told the crowd, "Don't smoke weed."

Spears' publicist, Holly Shakoor, issued a statement apologizing to fans about the delay. The statement said "crew members above the stage became ill due to a ventilation issue."

Spears began her "Circus" tour of the United States, Canada and England on March 3 in New Orleans. Her father and attorneys are exploring the possibility of expanding the tour to include more shows in Europe and Australia.