Neil Patrick Harris and David Burtka are known for being ultra-committed to their Halloween costumes every year, and 2019 is certainly no exception. Shortly after they unveiled an artistic family costume with their 9-year-old kids - Harper and Gideon - the Hollywood couple channeled another set of twins at Heidi Klum's annual Halloween bash: Mary-Kate and Ashley Olsen.
Neil and David slipped into blonde wigs and all-black outfits, with cheekbones chiseled by lots of contouring. The stylish sisters are frequently seen in similarly monochromatic looks, and we have to say, Neil and David really nailed their red carpet poses. The subtle smiles and smoldering are all too familiar. Keep reading for a look back at some of Mary-Kate and Ashley's most iconic all-black ensembles from the past few years, and then check out more snaps from Neil and David's Halloween night.