It's not quite Halloween [1] yet, but Neil Patrick Harris [2] and David Burtka's twins are already getting in on the fun. On Wednesday, David posted a tweet of Harper and Gideon's eclectic costumes [3] on his Twitter, saying, "The kids had their Halloween concert today they wanted to go as the Queen of Mermaids and Captian Color Pants!" In an additional Instagram photo [4], which Neil captioned with just "#love," the two look like the coolest and cutest little hipsters ever. And don't think we didn't notice the Mickey Mouse and cat-ear beanies. While the costumes are pretty heart-melting, this isn't the last you'll see of the Burtka-Harris family — they always pull out the stops with their epic family costumes [5] on the holiday every year. See the delightful little warmup, then check out more cute pics of the family [6].