The answer is actually surprisingly simple: Avicii doesn't sing. Unlike fellow nominees like Macklemore and Miley Cyrus, 24-year-old Swede Avicii isn't a singer — he got his start as a DJ and remixer, and has moved on to become a full-fledged record producer.

Did Avicii sing the days?

"The Days" is a song by Swedish DJ and record producer Avicii, with vocals by English singer Robbie Williams.

Did Avicii sing levels?

"Levels" is a progressive house song by Swedish DJ Avicii that was released on 28 October 2011 through Universal Music Group on iTunes. Before the song's release, an early version known as "Unnamed" played during a radio program on BBC Radio 1 in the United Kingdom on 11 December 2010. ...