"I Do Love You" is a song written and performed by Billy Stewart. It reached # 6 on the U.S. R&B chart and # 26 on the Billboard Hot 100 in 1965. The song was featured on his 1965 album, I Do Love You.

Answer this question: who sings the oldie song i do love you? Let's think fast. Stream of consciousness:
To answer the above question, the relevant sentence is: "I Do Love You" is a song written and performed by Billy Stewart. So the final answer is Billy Stewart.