The original line-up of Sugababes reform!

The original line-up of Sugababes are officially back together.

Mutya Buena, Keisha Buchanan and Siobhan Donaghy have apparently reformed for a new million pound record deal with Polydor Records.

It has been revealed that Emeli Sande has been writing songs for the group and producer Cameron McVey, who helmed their 2000 debut album One Touch, is also on board.

Donaghy originally quit the band in 2001 and was replaced by Hedi Range. Buena was next to leave in 2005 and was replaced by Amelle Berrabah, while Buchanan left in 2009 and was replaced by former-Eurovision hopeful Jade Ewen.

It has not been revealed if the girls are allowed to use the Sugababes name for their latest project, despite Buena having a legal claim to the name following a court case last summer.