Grohl fills in for Cornell with Audioslave at the "I Am the Highway" tribute concert to the late Chris Cornell, the bands former frontman. The concert consisted of 42 songs, over 5 hours, and featured Soundgarden, Audioslave,Temple of the Dog, Foo Fighters, Metallica, Josh Homme, Miley Cyrus, and many more. Check out all the videos here at Consequnce of Sound.