She told internet radio host Dean Kelly: "We always discuss doing a ten-year reunion thing. So that's going to be next year.
"We're definitely going to do something. But it's a whole huge production. Girls Aloud is not just us five, there's, like, us five plus a ridiculous team of 50 who travel with us, it's amazing."
The band's manager Hilary Shaw has also confirmed that the five-piece will come together next year.
She explained: "Everybody wants them to make a comeback and it will be next year. Well, it is their tenth anniversary so there will be something."
Shaw admitted that a new studio album is unlikely, but said the girls are "getting on great".
She added: "They speak all the time, and that includes Cheryl [Cole] and Nadine [Coyle] with the other girls. Cheryl is keen to get back with the girls and is planning something which could be a one-off or some gigs."