Madonna is reported to be in talks to perform with Britney Spears on the singer's forthcoming world tour.

Spears is due to hit the road in March in support of her new album 'Circus'.

According to her dance choreographer, Wade Robson, Spears is keen for Madonna to join her at a series of shows.

“There has been talk of Madonna making an appearance and there’s so many places we could take that,” he told the Sun newspaper. “At this point the main issue is timing.”

As previously reported, Spears made a surprise appearance alongside Madonna in Los Angeles last month.

(by Jason Gregory)