During their recording years (eight albums), ABBA only recorded their own written material apart from a short 4-minute medley of three songs recorded in 1975 for a charity album: "Pick a Bale of Cotton"/"On Top of Old Smokey"/"Midnight Special". These were American folk songs recorded by artists as diverse as Leadbelly, Pete Seeger and Burl Ives. The medley also appears on the re-release of ABBA's self-titled 1975 album.