While the members of Girls Aloud have been concentrating on their solo careers for some time, it has been expected they would eventually reunite for more collaborations.
St Trinian's star Sarah Harding has rocked these expectations, however, saying she is unsure about the band's future.
"I don't know what the future is for the band. We'll just have to re-evaluate when the time comes. It's hard to know," she tells a UK magazine.
She added that she had "no idea" if the band would in fact reunite.