This Is Us fans have a spook-tacular episode coming their way this Tuesday, October 31. Mandy Moore, who plays the matriarch of the Pearson clan and everyone’s fave strong female lead on the show, teased a photo for the special upcoming Halloween episode via her Instagram.

“We may look pensive in this shot,” Moore says of herself and costar Milo Ventimiglia, “but I assure you, we had a blast making this episode.” The pair look somber yet adorable in their coordinating magenta ’60s garb. Moore is channeling Cher’s extra long, sleek hair extensions and a smokey eyeshadow look, which may or may not have been part of the original makeup plan.

“I had a black eye and just incorporated the purple bruise into my eyeshadow as Cher,” the 33-year-old explained in her caption. While she doesn’t mention the cause of the bruise, we’re glad to see that it’s faint enough to conceal.

BEVERLY HILLS, CA - CIRCA 1970: Singers and TV stars Sonny and Cher pose for a portrait at home in Beverly Hills, California. (Photo by Martin Mills/Getty Images)

Meanwhile, Ventimiglia is the spitting image of Cher’s longtime partner Sonny Bono in this pic. Can we just say, dressing up as the legendary Hollywood couple is such a Jack and Rebecca move. While Ventimiglia’s retro hair is most likely thanks to a really good wig, we’re speculating that the lush, cascading mustache is all natural.

Are you dressing up with your S/O this year? Tweet us your pics @BritandCo.

(Photos via Martin Mills/Getty Archive, NBC/Getty)