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Hilary Duff Holds Hands With Estranged Husband Mike Comrie at Halloween Party: Picture

Hilary Duff and Mike Comrie
Hilary Duff held hands with her estranged husband Mike Comrie as they attended a Halloween party on Friday, Oct. 24

Back on? Hilary Duff caused quite the buzz when she attended (and held hands!) with her estranged husband Mike Comrie at a Halloween party on Friday, Oct. 24. The pair even went in coordinating costumes!

Related: PHOTOS: Celebs in matching Halloween costumes

Duff, 27, went as a sexy tooth fairy for the Casamigos bash at Mike Meldman's. She donned a shimmering knee-length skirt, a white tank top, and wings. She topped off the look with glitter eye makeup and a gold crown. The former NHL player, meanwhile, appeared to go as a dentist. He wore a black tux and clipped a name tag to his chest.

Related: PHOTOS: Hilary through the years

The "Chasing the Sun" singer has remained amicable with Comrie, 34, since the couple announced their split back in January. Comrie and son Luca, 2, joined the former Disney star at a music video shoot in July, and Duff posted a sweet birthday message to the athlete last month.

Related: PHOTOS: Celebrity splits 2014

Duff and Comrie have coordinated their Halloween looks before. The pair went as robbers in 2011, and both paid tribute to Dia de los Muertos (Mexican Day of the Dead) in 2012. Last year, however, Duff decided to go as a mouse while Comrie suited up as a doctor.

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