Britney Spears' camp doesn't want any crackheads or pot heads to join her on tour, so they drug test her backup dancers.

"They all had to be drug tested and, if they didn't pass, they were fired. She is under strict watch."

"It's going to be a pretty big tour," says Robert Baker, the studio director at Millennium Dance Complex in North Hollywood, where Spears frequently rehearses. "They're going to have a three-ring circus with live animals, so it's probably stricter liability."

"I don't think it's a common practice, but each artist is different," Baker tells E! News, referring to the drug-testing issue.

I have a feeling Britney's dad is behind this. Papa Spears is too damn controlling. In another year she'll be pushing 30 and he needs to back off. I think Britney's got her mind right now but she's still treated like a disobedient toddler. She just wants to go through life like a karate kid, and after spending a decade as a solo artist, she deserves a little freedom and the right to make her own decisions.

source