The Saturdays have won their first UK number one single with 'What About Us'.

The Sean Paul collaboration becomes the girl group's first chart-topper, although they have previously scored 11 Top 10 hits since 2008.

It is also the fastest-selling single of 2013 so far, shifting over 114,000 copies in its first week.

"We couldn't be more thrilled to be the UK's official new number one with 'What About Us'," the band told The Official Charts Company. "Thanks to everyone who has supported us and the single. We love you all. This is your number one too!"