"Mary Jane" is a blues song by Janis Joplin.
The song has five verses; the first includes the line "When I bring home my hard-earned pay, I spend my money all on Mary Jane".
A live performance of the song, recorded in San Francisco 1965 with the Dick Oxtot Jazz Band, is on the 1975 compilation album Janis.
[1] The song is also included on the 2007 compilation The Very Best Of Janis Joplin.
[2] The song is often incorrectly attributed to Bessie Smith.