Spears to join Madonna, Timberlake on stage?

Rex Features

Britney Spears is reportedly planning to appear alongside Justin Timberlake on Madonna's 'Sticky and Sweet' tour tonight.

American Idol presenter Ryan Seacrest made the claim on his KIIS FM show, saying: "They are going to be on stage performing with Madonna."

He added: "If Justin and Britney end up on stage with her... I don't know if I've ever seen anything like that before."

Madonna and Spears sparked controversy when they shared a kiss at the 2003 MTV VMAs. Madonna has since recorded separately with both artists.