Joe Zee flexed his dance skills at Equinox West Hollywood last week. A witness saw the Elle creative director grooving in the gym’s Video Dance Jam aerobics class, observing that the editor was appropriately wearing “the coolest workout outfit ever.” Zee takes regular hip-hop and jazz classes at Broadway Dance Center in New York with instructor Sheryl Murakami. But he’s living in LA for two months this summer, filming his Sundance Channel fashion competition show, “All on the Line.” Zee and his boyfriend, Parsons professor Rob Younkers, will be feted at a party hosted by Ariana Rockefeller at the Tower Bar in LA next week. Younkers is the designer for Rockefeller’s clothing line.