It's being rumoured that Britney Spears and Whitney Houston are set to go head-to-head when they both launch their comeback albums on the same date.

Spears's new album, the follow-up to 'Blackout', will be released around Christmas - the same time that ex-crack addict Whitney Houston will release the follow-up to her 2003 Christmas album flop.

A 'source' reportedly told The Sun newspaper: "Britney has been on fire in the studio of late. During recording sessions for the last album she was consumed by her chaotic private life. But she is determined to make a triumphant comeback. Top brass have been amazed by the quality of tracks they've heard.

"Whitney is set for another relaunch at the same time later in the year. They're determined Brit will come out on top."