Madelaine Petsch Takes Her Turn On Riverdale Rapid Fire

"Riverdale" star Madelaine Petsch is chilling at the YH Studio where she weighs in on our now-legendary challenge, "Riverdale Rapid Fire"! Find out which co-star she would team up with to off somebody, hear her put Luke Perry on blast, and what her cheer us on as we indulge in some couch-dancing!