Best Collaboration

Winner:

"Say Something"
A Great Big World and Christina Aguilera

Other nominees:

"Break Free"
Ariana Grande featuring Zedd

"Monster"
Eminem featuring Rihanna

"Problem"
Ariana Grande featuring Iggy Azalea

"La La La"
Naughty Boy featuring Sam Smith

"Bang Bang"
Jessie J, Ariana Grande and Nicki Minaj