What is the song that Mike Einzinger cowrote and Avicii performed?
Wake Me Up (Avicii song): "Wake Me Up" (stylised as "WAKE ME UP!") Wake Me Up (Avicii song):  is a song by Swedish DJ and electronic music producer Avicii, released as the lead single from his debut studio album "True", released on CD and cassette by PRMD Music, Lava Records and Sony Music's Columbia Records on June 17, 2013.
i don't know