Britney Spears straddles a man before passionately kissing him in her new music video.

The star - who is set for an eagerly anticipated comeback following her public meltdown - wears tight leather trousers, fake tattoos and a black wig in the promo for 'Womanizer', which she shot this week.

The 26-year-old will also be seen lying seductively across a kitchen counter before provocatively sucking on cherries and brandishing a whip at a suited man, who is restrained by a giant snake.

One onlooker says the singer was taking the shoot very seriously, adding: "Britney seems to be all business. She'd just do one thing after another and then on to the next."

The star managed to find time for a break during the filming - which took place at the Elevate Lounge restaurant in downtown Los Angeles - where she ate three pieces of cheese pizza for lunch.

'Womanizer' - which was leaked onto the internet earlier this week and is thought to have already been heard by thousands of fans - will feature on Britney's new album 'Circus', set for release in November. (c) BANG