Foo Fighters Dave Grohl Rocks Slayer T-Shirt During Grammy Performance Of ‘Walk’ [VIDEO]

The Foo Fighters took the 2012 Grammy's by storm.  Not only did they walk away with five total Grammy's last night, but they also delivered another killer performance.  Introduced by one of Dave Grohl's good friends, Jack Black, and playing to a massive crowd outside of the Staples Center in Los Angeles, The Foo's proved that rock is very much alive. 

The best part of their performance was that frontman Dave Grohl was rocking a Slayer t-shirt.  One can only assume he is trying to give love to the metal that has influenced him over his career, and also maybe give the Grammy audience a look at a metal band that is overlooked in recent years.