"Drowned World/Substitute for Love" contains a sample of "Why I Follow the Tigers", as performed by the San Sebastian Strings?
Take a listen at 0:22
The original name for what became "Drowned World/Substitute For Love" with different lyrics, vocal melody and instrumentation. The chorus starting: "Face the truth, no substitute for love". The song is also without the San Sebastian Strings sample of "Why I Follow the Tigers" that is present in the released version.