Joseph Gordon-Levitt and wife Tasha McCauley got all bloodied up for a performance at Seth Rogen [1]'s annual Halloween [2] Hilarity for Charity variety show in LA on Saturday night. The duo, who secretly tied the knot [3] back in December 2014, tore up the stage in matching blood-splattered outfits and were as cute as can be while snapping photos backstage. The event, which benefits the Alzheimer's Association [4], also brought out Scott Eastwood, Elizabeth Olsen, and James Corden, and it marked the first time we've seen these two at a public event together.