Now the original line-up of Siobhan Donaghy, Mutya Buena and Keisha Buchanan are back in the studio together.
They have been working on new material over the past few months and are in talks with record labels about a new deal.
Emeli Sande has been writing for the trio while they've also roped in credible producers, including Naughty Boy, Xenomania and ex-Blazin' Squad members Mojam.
This week both Mutya and Keisha have tweeted about being in the studio with "two lovely ladies".
Not only will they have to come up with songs to match their early hits but they will need a name too.
(the sun)