Blink-182's Mark Hoppus plays "What's My Age Again?" with Rage Against The Machine guitarist, others

During a recent show at the legendary Troubadour in West Hollywood, California, Mumford And Sons brought out Mark Hoppus for a performance of Blink-182’s classic song, “What’s My Age Again?” T-Bone Burnett and Rage Against The Machine guitarist Tom Morello also joined in. You can watch a fan-shot video below. Be sure to leave us a comment with your thoughts.

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