Sonisphere Festival have added a further 11 acts to this year's festival line up.

Joining the 3 day event at Knebworth in July are:
Hundred Reasons - Performing Ideas Above Our Station in full
Glassjaw - Performing Worship & Tribute in full
Skindred
Black Stone Cherry - Exclusive
Seether - Exclusive
Electric Wizard - Exclusive
Kvelertak - Exclusive
New Model Army
Crowbar
Alestorm
The Getaway Plan

Tickets for the festival which is set to be headlined by Queen Feat. Adam Lambert, Faith No More and Kiss are on sale now. The festival takes place at Knebworth House July 6-8.