The CW has officially revealed a brand-new poster and two preview clips of "Chapter Fifty-One: BIG FUN," tomorrow's Heathers-inspired musical episode of Riverdale.

The episode will see the series' cast tackling the murder-filled '80s black comedy film on stage at Riverdale High, similar to what the show did with Stephen King's Carrie last season. The first clip of the two makes it clear that Madelaine Petsch's Cheryl Blossom, Camila Mendes' Veronica Lodge and Lili Reinhart's Betty Cooper are really embracing the characters of Heather Chandler, Heather McNamara and Heather Duke, respectively.

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The second teaser pertains more to how the musical episode will play into Riverdale Season 3's overall story. The conflict between Betty and Kevin Keller continues, as Kevin reveals that the Farm's Evelyn Evernever will be his co-director on the production. Additionally, there is a fair amount of tension between the entire cast and crew, given their relationship history.

Finally, the poster released by The CW completely commits to the Heathers aesthetic, featuring the aforementioned titular characters alongside Veronica Sawyer (played by Ashleigh Murray's Josie McCoy) in front of a chalkboard with croquet mallets in hand.

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Airing Wednesdays at 8 p.m. ET/PT on The CW, Riverdale stars KJ Apa, Lili Reinhart, Camila Mendes, Cole Sprouse, Madelaine Petsch, Ashleigh Murray, Casey Cott, Mark Consuelos, Skeet Ulrich, Marisol Nichols, Madchen Amick and Luke Perry.