Phil campbell of Motorhead performing at Fields of Rock Festival 2007 - Day 2. Biddinghuizen, Holland - 17.06.07

The heavy metal guitarist is a longtime fan of the show and was said to be "shaking with excitement" when he paid a visit to the show's set in Melbourne.

Campbell was in the city for a series of Motorhead shows.

An insider says, "Phil told the cast that his mum used to tape the show for him when he was out on tour - so he never missed a minute. He's a big fan."

Source: WENN