Dave Grohl and his wife, Jordyn Blum stepped out together more than a year after his infidelity rocked their marriage. The Foo Fighters front man walked the red carpet Saturday night at Clive Davis' Pre-Grammy party in Los Angeles, putting on a united front with Blum as the couple made a rare public appearance together. Grohl kept it classic in a black suit layered over a coordinating turtleneck. Blum, standing alongside him, wore an emerald, one-shoulder gown with a dramatic leg slit. Travis