By Sarah Bull and Louise Saunders
Their reunion is arguably one of the most anticipated of all time.
And, a day after revealing their new name, the original Sugababes, who will now be known as Mutya, Keisha and Siobhan, have posed up for their first picture together.
In a quartet of pictures, shared on Twitter, it is clear that Mutya Buena, Keisha Buchanan and Siobhan Donagh have put their former differences behind them to focus on their musical comeback.
Here they are! Mutya Keisha Siobhan pose up in their first official picture, after revealing their new name yesterday
Back in the day: The trio as they were, at the height of their fame as the Sugababes
The trio smile and joke around in the sweet pictures, which come as the girls prepare to release their first material as a trio since 2000.
It was revealed yesterday that the girls had chosen the name Mutya, Keisha and Siobhan for their relaunch.
According to a legal document filed at the official European Union trademark database, the threesome registered the new moniker on June 27, 2012.
Larking around: The trio appear to have put any former differences behind them to concentrate on their musical comeback
Although Mutya, Keisha and Siobhan founded the name Sugababes when the band first burst on to the pop scene back in 1998, it now the property of their former record label.
As such, the name is now being used by the current incarnation of the Sugababes, Heidi Range, Jade Ewen and Amelle Berrabah.
Mutya, Keisha and Siobhan signed a £1million deal with Polydor Records in April 2012, and are currently working on their first album as a three-piece since One Touch in 2000.
Producers MNEK, Asterix, Craze & Hoax are all rumoured to have been working on the record, while Emeli Sande has confirmed she is working with the band.
'What we've done so far sounds great,' Emeli said. 'They're going to make people stand up and notice.'
Sugababes have undergone a number of format changes since they made their chart debut in 2000 with Overload.
Siobhan left the band in 2001 after just one album, and was replaced with Heidi Range.
Mutya later departed in 2005 due to personal reasons following the birth of her daughter, with Amelle Berrabah taking her place.
Finally, Keisha quit the Sugababes in September 2009 after a reported fall-out with Amelle.
Amelle said in an interview with Radio 1 at the time: 'It was happening for a long time. We couldn't try any more. We couldn't do any more.
'I don't want to go too into it because I can't be a****, but basically me and Heidi got to the point where we couldn't try any more or do any more.
'We just had enough and couldn't help the situation. That's in the past - Jade's here and a great singer and we're just really excited. We wish Keisha all the best.'