Their more than thirty years playing heavy metal in the best world stages is more than enough to introduce UDO. They will be at Rock Fest Barcelona 2019 with razorblade throated singer Udo Dirkschneider at the front. They are one of the mainstays of festivals and their show is always one full of metal anthems old and new. Their most recent “Steelfactory” is a testament of how a band can keep being loyal to their fans without being boring.