Episode 3x16 "BIG FUN" Original air date: March 20th 2019 All rights go to the rightful owners. Performed by: Casey Cott, Madelaine Petsch, Camila Mendes, Ashleigh Murray, KJ Apa, Lili Reinhart, Cole Sprouse, Charles Melton, Jordan Connor, Drew Ray Tanner and Zoé de Grand'Maison Songwriting: Kevin Murphy / Laurence O'Keefe Original: Seventeen (reprise) - Heathers the musical Seventeen (reprise) (From the Original TV Series "Riverdale") (Season 3) Riverdale Cast ℗ 2019 WaterTower Music Auto-generated by YouTube. Provided to YouTube by Ingrooves Copyright Disclaimer under section 107 of the Copyright Act of 1976, allowance is made for “fair use” for purposes such as criticism, comment, news reporting, teaching, scholarship, education and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.