"Hang On" is a song by the band Weezer. It is the seventh track and second single from their eighth studio album, Hurley. The album version of "Hang On" is co-written by Rick Nowels and features Canadian actor Michael Cera on backing vocals and pseudo-mandolin. The single version features no mandolin, and contains a harder sound.
Alternative Press calls the song one of the best off of Hurley, along with the song "Run Away", praising its uniqueness and commenting "sounding as musically lively and lyrically honest as any cut off Pinkerton".Rolling Stone regards the song as "power-ballad heaven".