What is the song that Mike Einzinger cowrote and Avicii performed?
Mike Einziger: Michael Aaron "Mike" Einziger (born June 21, 1976) is an American musician, best known as the guitarist and co-songwriter of the rock band Incubus. Mike Einziger:  He co-wrote and played acoustic guitar on Avicii's 2013 worldwide hit "Wake Me Up". Wake Me Up (Avicii song): "Wake Me Up" (stylised as "WAKE ME UP!")
i don't know