The ex-Sugababes have posted the video for 'Boys' on YouTube.
> Digital Spy's most anticipated albums of 2013
A 3-second clip of the studio version of the track was also released on Soundcloud.
Mutya Buena, Keisha Buchanan and Siobhan Donaghy played a surprise gig on New Year's Eve - their first show together in over a decade.
At that show, the band performed a cover of Rihanna's 'Diamonds' alongside their own hits 'Overload' and 'Freak Like Me'.
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The trio have claimed that their first album together since 2001's Sugababes record One Touch is "a step up" from that album while being "eclectic" and "modern".
A snippet of the studio version of 'Boys' has also been premiered on Popjustice.
Photo gallery - albums to be excited about in 2013:
Judging by her 'Danger' EP, which was released at the tail end of 2012, Katy B's second album is shaping up rather nicely indeed.
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