Are Siobhan, Keisha and Mutya really joining forces?
Mutya has since denied reports on Twitter: "No track [with] Keisha or Professor G, he was around the studio. I'm just working on my stuff at the moment." Keisha's spokesperson simply said that she is "working on a number of exciting projects both old and new."
And yet, the rumours continue...
It has now been alleged that the threesome have recorded a track together called Love Like This, written by BBC Sound of 20212 winner Emeli Sandé. The track has reportedly been produced by Naughty Boy at an Ealing recording studio last week as part of the girls' comeback album.
The Sunday Mirror reports that the song is reminiscent of the Sugababes' early work, which included the singles Soul Sound and Run for Cover. The new track is said to include the lyrics: "Won't hold my breath again, I still remember when I gave you my heart and it turned out irrelevant. Back on the medicine, back in the thick of it, it's here in the room but we don't talk about the elephant."
"The song is about not being used to being loved because you have been hurt so many times before, and that you think you have been loved before but in reality you haven't," a source told the Sunday Mirror.
"The girls are very much back to their soulful roots but this time around it's far more innovative. They've recorded more tracks too - and they're working hard to get a body of new work.
The source added: "Siobhan has left her job in the City and they are concentrating on getting material together for an album. They are very dedicated and it's working well."
Three major labels are said to be interested in signing the reformed group.
The original Sugababes were together from 1998 to 2001. Their album One Touch charted at No 26, and their highest charting single was debut Overload at No 6. After Siobhan left and Heidi Range joined, the 'Babes next two singles went to No with Freak Like Me and Round Round.
So, what do you make of the rumours? Are they just that, or is there no smoke without fire? And with the current Sugababes seemingly on hiatus, is now the time for a comeback from the original super-group?