Drugs are bad!
Jamie Spears reportedly told Britney's "Circus" tour backup dancers there would be random drug tests whilst on tour.
And he wasn't kidding.
According to RadarOnline.com, several of Britney's backup dancers were just kicked off the tour for failing their drug tests just two shows in.
"I think [the fired dancers] just didn't expect to actually get tested," says the source. "And drugs are just not okay so they had to go."
Britney performs tonight in Miami, Florida at the American Airlines Arena.
Any dancers cracked out after the show should expect to get the boot, too!