Britney Spears has made a raunchy return to the spotlight with one of her sexiest videos to date, in which she whips a string of women while posing provocatively above a shark-infested pool. The Toxic superstar is planning to release her eighth album ahead of her much-publicised two-year residency in Las Vegas, which is due to begin at the end of the year (13). Spears has now released the promo for her new single, Work B**ch!, and in the video she can be seen dancing seductively in the middle of a desert with a group of PVC-clad females. She then grinds in a bikini before brandishing a whip, which she cracks at one woman crawling along a floor, ripping her underwear. The star is then shown in a party scene, where one female dancer is gagged by a speaker system, before Spears overpowers a number of women attached to diamond-encrusted dog leashes. Spears re-teamed with her Scream and Shout collaborators, producer will.i.am and video director Ben Mor, for her latest project.