Plus: Cira, Nervo, Ellie Goulding and more
- Next gallery - 2013 VMAs late arrivals: Taylor Swift, Selena Gomez, Adam Lambert
- Previous gallery - The 2013 MTV VMAs: 10 things we're looking forward to the most
Katy Perry wants you to roar
Katy Perry wants you to roar as she walks the red carpet at the 2013 MTV Video Music Awards.