It was released in 1968 with the B-side "Open Up Your Eyes" on the Parlophone label, Catalogue number R5680.
The song was written by members of the band with input from their wives and the title is a combination of their names (Allan Clarke's wife Jennifer née Bowstead and Graham Nash's wife Rose née Eccles).
After the disappointing chart performance of the psychedelic-leaning "King Midas in Reverse", this song was a return to the popular style that had been commercially successful for the group.
Cash Box praised the song's "simplicity and straightforward happiness.
"[3] The name Jennifer Eccles also features in the song "Lily the Pink" by The Scaffold; the reference is an in-joke, as Graham Nash, who left the Hollies in December 1968, sang backing vocals on this recording; Nash had been married to Rose Eccles from 1964 until 1966.