A previously unreleased Led Zeppelin track, titled “Sugar Mama” has premiered online today, in advance of the band’s upcoming re-issues of their final three albums, Presence, In Through the Out Door and Coda.

“Sugar Mama” was originally recorded at London’s Olympic Studios in 1968 during the sessions for the band’s debut album. The song has been available as a bootleg for many years, but it was thought the song came from the Led Zeppelin II sessions.

The song will be included in the bonus material of the Coda deluxe edition release, due out July 31st.

Hear “Sugar Mama” online via Rolling Stone here.