Who knew seeing Mandy Moore as Rebecca, dressed as Cher, hugging Lonnie Chavis as Randall, dressed as Michael Jackson, could make somebody so emotional? This Is Us knew.

In "The 20's," This Is Us is giving viewers a very special Halloween episode. How is it special? Just look at the photos below! Those costumes, those are special. The official description of the episode: "Trick-or-treating with the 10-year-olds goes awry for Jack and Rebecca. Randall, Kevin and Kate have life-changing Halloweens."

The promo indicates viewers will see Kevin (Justin Hartley), Randall (Sterling K. Brown) and Kate (Chrissy Metz) in their formative 20s—hence the name of the episode. It also looks like we'll be getting some flashbacks to Rebecca (Moore) and Jack (Milo Ventimiglia) to the birth of the babies. Take a look at what looks to be another classic This Is Us episode.

This Is Us, Halloween

NBC

There's Ma and Pa Pearson as Sonny Bono and Cher, Randall as Michael Jackson, Kevin as a hobo and Kate as Sandy from Grease.

This Is Us, Halloween

NBC

Even while trick-or-treating Jack has the advice for Kate.

This Is Us, Halloween

NBC

If this means Mandy Moore is singing some Cher, well, we'd be really happy.

This Is Us, Halloween

NBC

Looks like Rebecca will be crafting some of the costumes for the kids.

This Is Us, Halloween

NBC

Rebecca and Jack forever!

This Is Us, Halloween

NBC

Cher comforts Michael Jackson, which would also make for an interesting dinner party conversation. "I saw Cher comforting Michael Jackson a street..."

This Is Us, Halloween

NBC

Going as a hobo is a classic Halloween costume.

This Is Us, Halloween

NBC

The bowl cut, the 'stache, the white suit, the necklaces, the collar...it's all working.

This Is Us, Halloween

NBC

Pearsons prep for Halloween.

This Is Us, Halloween

NBC

Looks like the Pearson kids need help while out in the field trick-or-treating.

This Is Us, Halloween

NBC

The bond between Kate and Jack is strong.

This Is Us, Halloween

NBC

Is Kevin being nice and sharing his candy? Or is this Ninja Turtle a bully?

This Is Us, Halloween

NBC

Why isn't Jack Pearson our dad?

This Is Us, Halloween

NBC

Could this scene have to do with Randall reflecting on his mom's past while his wife goes into labor as seen in the promo?

This Is Us airs Tuesdays, 9 p.m. on NBC.

(E! and NBC are both part of the NBCUniversal family.)

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