Founding Sugababes member Mutya Buena has applied for ownership of the band's name, her legal firm has confirmed.
The star, who quit the band in 2005, has applied to the European Trademarks Authority for permission.
Keisha Buchanan - the last of the original members - left last year. At the time Buena said: "It just means the Sugababes have ended."
But speaking at a recent album launch, current Sugababe Heidi Range said their record company owned the band name.
"Our record company [Universal] owns the name so there's no conversations about who owns the name," the singer told BBC Radio 1's Newsbeat.
"I signed to Universal records eight-and-a-half years ago with Mutya and Keisha, so we've still got the name."
She also said none of them had been officially "made aware" of Buena's bid.







