Working a Red Carpet can be intimidating, especially if you're new to fame. However, the cast of Riverdale is filled with young, talented newcomers . . . and one of them just happens to know how to rock the carpet like nobody's business. Madelaine Petsch (aka Cheryl Blossom) turned up at the MTV Movie and TV Awards on Sunday night to show the vets how it's done alongside boyfriend Travis Mills. Of course, we should have known she would be able to strut in heels with the practiced poise of Victoria Beckham. Though the cast wasn't nominated for anything, you can bet they'll be on the list next year.