Madelaine Petsch breaks down her favorite wardrobes and costumes from her role as Cheryl Blossom on the CW's "Riverdale." Madelaine held a hard and fast rule that she wouldn't wear red, but explains how quickly she had to adjust when she was told Cheryl would wear red exclusively. From her season three "archery" look to her cheerleading uniform, Madelaine breaks down her most iconic "Riverdale" looks through the years.