MTV Video Music Awards 2014

The Names You Need to Know at This Year's VMAs

Have no fear if you don't know your Iggy from your Avicii! Study up on 5 Seconds of Summer, Ariana Grande, Sam Smith and more stars vying for Moonmen

ARIANA GRANDE

She's come a long way from her Nickelodeon days. Dubbed the "mini Mariah" for her powerhouse falsetto, she's embraced girl power, collaborating with Iggy Azalea for "Problem" and Jessie J and Nicki Minaj for "Bang Bang." Grande is nominated for best female video, best pop video, best lyric video and best collaboration.