Britney Spears and her friend went shopping in New York and when they returned to Britney's apartment a wall was on fire.
Britney accidently left a candle burning in front of a ventilator and when she returned from shopping she had to call a fire brigade to put the fire out.
Apparently this is not the first time that Britney has done something like this, with her previously managing to set part of her bathroom alight.