The Natural Four was signed by ABC Records after their first release, "I Thought You Were Mine" rose to number one on the charts and sold 30,000 copies; their subsequent releases did not repeat the success of their initial recording.
Their first release, "I Thought You Were Mine" sold 30,000 copies locally, after being regularly played on San Francisco soul/R&B radio station KSOL and on Oakland's KDIA where it rose to #7 on the chart. 
