Britney Spears seems to be serious about her comeback this time, and that includes making sure that everyone around her is clean, sober, and not in a position to derail her progress. Â For the filming of Britney’s latest video, the dancers who performed in the video were required to sign an agreement stating that they would not bring any kind of substances onto the set, and that they themselves would be clean of drugs.
The agreement the dancers had to sign specifically states that the they would not expose Britney to any controlled substances or alcohol, and that they understood that they could be asked to take a surprise drug test at any time.  So it’s basically… like any other job.