From the post-hardcore ashes of At the Drive-In emerged The Mars Volta in 2001, a progressive rock band formed by vocalist Cedric Bixler-Zavala and Omar Rodríguez-López, who is, according to the American edition of Rolling Stone, one of the best guitarists of the last three decades. Their concept albums are one of their main hallmarks, along with their energetic live show, which we were able to enjoy at Azkena Rock Festival a decade ago.