Particle’s Steve Molitz will join his Crooked Sun bandmates Rich Robinson, Joe Magistro and Brian Allen overseas this Friday, June 15. The performance will take place at the Azkena Rock Festival in Vitoria Gasteiz, Spain (near Bilbao). Other acts slated to appear include: Ozzy Ozzbourne, Lynyrd Skynyrd, My Morning Jacket and Twisted Sister, among others. Crooked Sun is the name of Rich Robinson’s current backing band.

In related news, Particle have added another summer date. The group will play a late night set at Mantrabash in North Carolina on June 23. Robert Walters, Brothers Past and many others are also confirmed to perform at the festival. Former Particle guitarist Ben Combe will reunite with the band for their set.