In 1991 Leonard Cohen was on a TV show and he sang a cute song about bananas that Chiquita featured in commercials that ran in movie theaters back in the 1940s. I have no idea how it came up or what inspired Cohen to break into the song, but he clearly wants a close pal of his, Canadian poet Irving Layton, to register how much of the song he knows by heart.
The original singer of the Chiquita Banana song was Monica Lewis, who many years later appeared in two of the Airport movies.
You probably know that on the cover of his 1988 album I’m Your Man, Cohen is depicted munching on a banana. Bananas were even used in the promotional items produced for the album, as seen at the top of this page.