Ananova:

Britney Spears is to 'marry' real life fiance Kevin Federline in her next video.

Federline appears in the video for My Prerogrative, reports MTV.com.

In the video, Britney has crashed a party and needs a new dress as hers is soaked.

Only after putting on the new dress is it revealed that it's a wedding dress and the party is her own wedding.

As she walks down the aisle, the groom is then revealed to be Federline, her real-life future husband.

The video is filmed in a haunted mansion which featured in the horror movie Scream 3.