The offstage announcer is heard at the very start of the film. He introduces Kian and his band, the HELLHOUNDS, to the stage, talking over the intro scene and describing how cool and hardcore Kian is while Kian is feeling insecure about it.
The announcer's voice should be loud and enthusiastic as you talk to the rowdy cheering crowd, hyping them up to see some true rock 'n'roll.