Britney Spears and Tinashe had a sexy sleepover in their 'Slumber Party' music video.

The 34-year-old star and the 23-year-old singer writhed around on top of a group of half-naked dancers whilst they sang ''we ain't gonna sleep tonight'' in the steamy video, which was unveiled on Friday (18.11.16).

The video begins with a set of gates opening, leading the viewer towards a mysterious-looking house. Stepping out of the car, Britney throws off her fur jacket and shows some skin in a stunning red halter-neck dress.

As she makes her way into the house, it is clear the party is in full swing and she surveys the guests that have gathered at the property.

By the second verse, Tinashe appears in a cleavage-baring blue corset, where she sings: ''Let's fill up this clawfoot bath with bubbles / Loving me so hard it's causing trouble / If it's seven minutes in heaven, make it double.'' Soon, she is joined by Britney and they share an intimate moment.

Later in the video, Britney sets pulses racing as she seductively crawls down a table and laps up a glass of spilt milk.

Meanwhile, the 'Piece of Me' hitmaker is no doubt thrilled with the song and its accompanying video as she previously described her music as like a ''baby'' to her.

She said: ''I just know that the direction I'm going in is so good. It's the best thing I've done in a long time. I'm just particular with this record - it's my baby. I'm proud of the work, and it's very different.

''It's not what you would think at all. I'm not rushing anything. I would much rather have it be completely how I want it to be. I just want it to be done right so that my fans will truly appreciate it.''