It looks like 'Air Guitar' hitmakers McBusted will support One Direction on the Australian 'leg' of their On The Road Again tour next year.
It hasn't been officially confirmed by either Matt or Niall, but this usually quite reliable Twitter account have said its happening so that's good enough for us:
https://twitter.com/Auzzie1Dupdates/status/544737828765061120
It was confirmed by a journalist for News Corp too, and anyway they've toured together before so it's not exactly beyond the realms of possibility is it.