Walls Of Jericho, Relient K and Darkc3ll have all joined the lineup for Soundwave 2016, following an announcement made by AJ Maddah on Twitter over the weekend.

The announcement comes alongside speculation that a final headliner will be revealed, with Maddah stating he has pre-emptively organised visas for the secret band in the hope of a last minute deal.

So far the 2016 lineup features the likes ofDisturbed, Bring Me The Horizon, The Prodigy and more.

Soundwave 2016comes to Sydney on Sunday January 24.