As part of the the A.V. Undercover series, a reunited Cap’n Jazz recently collaborated with Philly hometown heroes Hop Along at the House of Vans in Chicago. Covering Sonic Youth’s "100%," the tandem launches into a feedback-fueled, bass-thumping inferno of rhythm and noise. That juxtaposing blend of groove and jarring intensity creates a heavy yet fun dynamic. Dare you to play it just once.