They were more than a little excited to perform live together again for the first time in 12 years.
But as the original Sugababes took to the stage on Thursday night under their new guise as Mutya Keisha Siobhan, or MKS for short, Keisha Buchanan ensured that all eyes were on her in an extremely revealing bodysuit.
The 28-year-old singer highlighted her hourglass curves in an I.D. Sarrieri black bodysuit teamed with silky black shorts and a pair of sky-high heels.
Curvy girl: Keisha Buchanan stole the spotlight from her MKS bandmates on Thursday night as she took to the stage for the girls first live performance together in 12 years wearing a very revealing bodysuit
Posing up: While Keisha's bandmates Mutya Buena (right) and Siiobhan Donaghy also looked smart for the gig, it was Keisha who really commanded attention in her outfit
Keisha's outfit choice certainly ensured she stood out from her bandmates, with the sheer top of the bodysuit drawing attention to her ample cleavage, and the short shorts highlighting her long and toned legs.
But the pretty singer did have some competition in the glamour stakes from the other girls as they took to the stage at Scala nightclub in London's Kings Cross.
Mutya Buena opted for a sophisticated number wearing a black and grey suit, but adding her own fun twist she wore an extremely low-cut top which showed off her ample cleavage.
Fun and flirty: Keisha teamed the revealing bodysuit with a pair of silky black shorts, waving at fans as she headed home
Just enough time for a selfie! Keisha took a quick picture of herself and posted it on Twitter after the gig
Covering up: Keisha was later seen wearing a blazer over her ensemble
In keeping with their smart look Siobhan wore a black trouser suit over a green velvet and sheer bodysuit, also by I.D. Sarrieri, with a pair of flat white brogues, creating a 1920s vibe.
The original Sugababes line-up was dismantled back in 2001 when Siobhan left the group, followed by Mutya in 2005 and finally Keisha in 2007.
The group kicked off their performance with Overload, which was their first single and huge hit from 2000.
They're back: Keisha, Mutya and Siobhan took to the stage at Scala in London on Thursday evening
Singing her heart out: Keisha looked as if she was getting emotional as she made her return to stage
So pleased: It seemed any issues between the women from the past disappeared once on stage
They went on to perform six new songs, while they closed the successful show with their new single Flatline.
Speaking to Metro following the performance the group said: ‘It was incredible to be able to share our new music with fans at our first full live show.
‘Performing our new single Flatline to a sold out crowd was a very special moment!’
Show stopping: Keisha showed off her legs in a short skirt featuring a sheer train detail
Different takes: Mutya (L) and Siobhan (R) may both have been wearing suits but in very different styles
They've still go it: The group showed that a 12 year hiatus hasn't stopped them from putting on an impressive performance
The show came as Jade Ewen, who is part of the current line-up of the Sugababes revealed she was unsure about the future of the band.
She told Digital Spy: ‘I don't even know if the band stuff is going to happen again, if I'm completely honest. I think Amelle wants to do her own solo stuff, Heidi is doing a Happy Days musical... I think we're pretty much done.
‘I'm working on solo material at the moment actually. It's only come about in the past three weeks, so it's quite a new project.
Lets go: The group kicked off their performance with their first ever single Overload
‘No one's really seen me yet. I sang for Eurovision, I've been in a band, but I don't think anyone really knows what I'm about.’
Siobhan left the group in August 2001 during a promotional tour in Japan - less than a year after the release of their first single Overload.
Delighted: Siobhan looked stunning with her hair in waves framing her face as she smiled at her bandmates
Show stealer: Mutya almost risked popping out of her top as she moved around the stage
After being replaced by Liverpudlian Heidi Range, the trio enjoyed huge success, including No.1s around the world and a Brit Award.
However, Mutya decided to quit the group in December 2005 to spend more time with her daughter.
Keisha remained with the Sugababes and their new replacement Amelle Berrabah until she was 'forced out' of the group in September 2007.
History: The girls have a lot of history together- they formed when Mutya and Siobhan were just 13-years-old
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