Dave Grohl from Nirvana and The Foo Fighters is a bonafide rock star,yet when he recently went to watch Metallica perform at the Rose Bowl in Pasadena, he was spotted not backstage with the band but in the pit with everyone else.  In a 2015 interview Dave had said;

“I bought the first Metallica album on cassette from a mail-order catalog in 1983. I had never heard of them. I didn’t know anything about them other than they had a cool name, and the description said “thrash metal.” I didn’t even know what that meant. I had listened to tons of punk rock music, and I loved Motörhead, but thrash metal? That sounded scary and cool. So I sent them my $6 or $7 and a couple weeks later I get this tape in the mail. It was Kill ‘Em All and it blew my $&#$^#@ mind. I will be a diehard Metallica fan until the day I die because of that experience. It was like someone had sent me the Holy Grail. I was like, “Ahhh! This is so killer!”

The pictures below were on Twitter via @grohlineveryday on July 31st but have since been deleted.