There wasn't any pressing reason why Metallica should've been on the telecast, let alone performing a 26-year-old song. (The quartet was nominated for Best Recording Package for Through the Never, but not in any of the major categories.) Who cares? Performing the epic "One," a task Metallica also undertook at the 1989 Grammy telecast, but joined this time by classical piano virtuoso Lang Lang, the band delivered the evening's most aggressive minutes. There was palm-muted guitar riffing, shooting flames, red lasers, dueling Kirk Hammett/Lang Lang solos and James Hetfield growling "Hold my breath / As I wish for death." The Grammys, by design, are a feel-good event. Having these metal masters around to add some acid to all the sugary sweetness was a necessary, and just plain awesome, counterpoint.