Limited 180 gram vinyl LP pressing in matt finish sleeve with '60s style inner bag! Rocka Rolla is a solid album with 10 great hard- rocking tracks, first released in 1974. This is the seminal debut album from one of the key founders of heavy metal, acknowledged the world over. And, yes, they are indeed the pioneers of the that 'leather-and-studs' look, the metal standard gear, which thereafter has been adopted by numerous bands and fans all over the world.