Britney Spears and Justin Timberlake will join Madonna on stage in Los Angeles tonight (06.11.08).

US radio host Ryan Seacrest confirmed the former couple will take the stage in the city's Dodger Stadium as part of Madonna's 'Sticky and Sweet' world tour.

Speaking on his KIIS-FM show yesterday (05.11.08), Ryan said: "I couldn't wait to tell you this. If Justin and Britney end up on that stage with Madonna - I don't know if I've ever seen anything quite like that before."

Ryan also promised to reveal more details about the performance to his listeners today, adding: "Expect some big surprises!"

Britney - who releases her new album 'Circus' on December 2 - is already involved in the 50-year-old singer's tour, having filmed a video segment which is shown during Madonna's performance of her hit song 'Human Nature'.

In the piece, Britney is seen trapped in an elevator, whispering, "Express yourself, don't repress yourself". This will be the first time Britney and Justin have performed together since they split in 2002 after dating for several years.