Britney Spears requests erratic pill tests for dance experts: Britney Spears has reportedly banned her backing dancers from drinking or taking drugs following her own battles. According to TMZ, if they refuse to take random drug and alcohol tests, the dancers could face the sack in accordance with a non-disclosure agreement they were asked to sign before making the Till The World Ends video. The purpose of the contract is believed to be to keep Spears on the straight and narrow as she continues her comeback.

The agreement specifically states: 'It is essential that Artist (Spears) not be exposed to any alcohol, drugs or controlled substances ('Prohibited Substances'). Accordingly, Contractor agrees to refrain from the distribution, dispensation, solicitation, possession, sale, transfer or use of any Prohibited Substance (collectively, the 'Prohibited Activities').'Spears is set to embark on her Femme Fatale tour, following a release of an album by the same name.