"Hey Brother" served as the third single off his album and received similar success as the two previous singles. It peaked at No. 2 on U.K. Singles chart and peaked at No. 16 on the Billboard Hot 100 chart. It was his final song to hit the top 40 on the chart before his death.

Avicii himself said that the song was his favorite track on his first album. "It's funny how that all happened since I never thought that I would be dabbling in that genre of music," he said of the song. "It's a big world out there and there is room for all kinds of music."