Music
Rex Features
Despite the girls vowing to take things slowly earlier this year, the new disc is now expected to be released in October - just one year after they brought out Change.
Orson's lead singer Jason Pebworth, who has been working with the group in the studio, has predicted that the new record will be their best yet.
"I've just come out of the studio with the girls and they're like machines - they don't stop working," Jason told the Daily Star. "You gotta admire them. The new tunes are taking them in a much funkier direction.
"I think this next album will be their finest moment. You're always trying to do something special for Sugababes because they're no ordinary pop band."
The group are expected to perform some of their new tracks at the Virgin Mobile V Festival later this month.
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