The characters were all puppets, although the opening sequence memorably featured a toy version of Rupert Bear sitting in a live-action child's bedroom. Rupert's friends and flying chariot appeared straight from the Daily Express pages, although he was joined by some new friends including a sprite called Willy Wisp. One of the most memorable elements of the series was the catchy theme song, sung by Jackie Lee, which reached #14 in the United Kingdom charts in 1971. Infamously, the song includes the erroneous lyric "Rupert", even though Rupert has never had the definite article in his name.