"I'll Be Gone" or "Some Day I'll Have Money" is a song by Australian progressive rock group Spectrum released as their debut single by EMI on Harvest Records in January 1971. It peaked at #1 on the national singles chart, while it reached Top 5 in Melbourne, Sydney and Brisbane. The song was written by guitarist and vocalist Mike Rudd, and produced by Howard Gable. The B-side, "Launching Place Part Two" was written to promote a music festival. Spectrum never repeated the success of "I'll Be Gone".