 From the mid-1960s onward Springfield would use the pseudonym "Gladys Thong" when recording backing vocals for other artists, including Madeline Bell, Kiki Dee, Anne Murray and Elton John.Bell was a regular backing singer on early Springfield albums, and the pair co-wrote "I'm Gonna Leave You" with Lesley Duncan, which appeared as the B-side of "Goin' Back".Springfield recorded the Bacharach-David composition "The Look of Love" for the James Bond parody film "Casino Royale".