For decades rock and metal have battled for understanding and acceptance and the struggle continues through the modern day as bands still face bans in countries.
There's been a lot of great music since the start of the rock era. Watch as Ithaca Audio deliver a intriguing mash-up featuring some of rock's biggest acts.
Tool performed their only 2015 show at the Monster Mash Music Festival over the weekend, dressing up as Led Zeppelin and covering 'No Quarter.' Check out the footage inside.