Neil Patrick Harris and David Burtka Win Halloween as Olsen Twins

Heidi Klum's annual Halloween Party is a full house of amazing and creative costumes, and it takes two to really stand out. That's exactly what Neil Patrick Harris and hubby David Burtka did as they dressed as America's favorite twins, Mary-Kate and Ashley Olsen.

The two wore all black with long, blonde wigs to channel the twins from Full House. With long sleeves and dresses that boasted floor-grazing hemlines, the couple perfectly channeled the Olsen twins' witchy, bag lady vibes. They completed the look with long blonde wigs, contoured cheeks and a nude lip.

The couple and their children always go all out for Halloween, and this year is no different. In a family costume earlier this year, they dressed as portraits of famous artists. Harris was Vincent Van Gogh (missing ear included), Burtka was Salvador Dali, and their 9-year-old twins were Frida Kahlo and Andy Warhol.

In past years, the family has gone as Tweedle Dee and Tweedle Dum with Alice and the White Rabbit, spot on ghosts from Disney's Haunted Mansion ride, and the cast of the original Star Wars. This family practically owns Halloween -- ok maybe Heidy Klum does but ... the crew is definitely leasing or something.