The Wanted haven't spoken to one another since going on hiatus.
The 'Walks Like Rihanna' group went their separate ways after their 'Word of Mouth' tour ended in May and Siva Kaneswaran has no idea what Tom Parker, Max George, Nathan Sykes and Jay McGuiness are up to now.
He told the Daily Star newspaper: ''I haven't spoken to the boys since.
''I don't know what's going on with them if I'm being honest.''
However, Siva is insisted the group will get back together one day.
He said: ''Everyone thinks that we've split but we never said that. It genuinely is a hiatus. I believe one day, when the time is right, we'll get back together.''
But the singer doesn't think they would reunite if all five members weren't interested.
He added: ''It'd have to be five of us or nothing.''
Siva's bandmate Tom recently insisted they all remain good friends and says their decision to go their separate ways was born out of each member wanting to do their ''own thing''.
He explained: ''I played guitar when I was younger and that kind of took a back seat when I was in the band.
''Obviously when you're in a band like that it's a product at the end of the day, and you're a boyband and that's what you do, even though we'd say, 'We don't wanna dance and we don't wanna do this'.
''Ultimately it probably wasn't a route I would've wanted to go down myself, so it's nice to come out of it and experiment in the studio and do my own thing for a while, which is cool.''
His new album Underneath It All is out now.