Source: Ok Magazine
The reason given for the abrupt change in plans? Brit's reportedly failed drug test — which rumors on the internet have chalked up to everything from asthma medication to amphetamines — and her scheduled date in court this Friday, when the video — for her single "Piece of Me" — had been scheduled to be filmed.
Almost as if they had seen into the future, the video's production team had been preparing for Brit's absence from rehearsals, seeking out a body double to stand in for the troubled singer during rehearsals — and possibly during portions of the actual shoot itself. However, it appears that even these precautions weren't enough to keep the video moving forward.