"Baby Lemonade" is the opening track to Syd Barrett's second studio album, Barrett. "Baby Lemonade", and another song, "Gigolo Aunt", they were a go for Barrett to play and/or sing to an existing backing track. The solo was performed by Barrett, not David Gilmour as is often noted. The intro was actually Barrett simply warming-up on guitar, that Gilmour had managed to record and placed it at the start of the album, making it seem like an intro to the song. It was included on the multi-artist Harvest compilation, A Breath of Fresh Air – A Harvest Records Anthology 1969–1974 in 2007.
The song, was performed along with 4 other songs (3 songs that would later be recorded for Barrett, and one that was originally from The Madcap Laughs) was recorded for BBC Radio on 24 February 1970. These five tracks were later released on The Peel Session, and even later with 3 added songs (one being another version of "Baby Lemonade") from another BBC Radio show, as The Radio One Sessions.