Sonny James had major success covering pop standards, both of the present time and of the past, during the 1960s. In 1969 alone, he had reached the top of the Billboard Hot Country Singles chart with two such covers: "Only the Lonely" and "Running Bear."

"Since I Met You Baby" was James' third cover song released during 1969. Supposedly recorded live (the song's introduction and fade out features a cheering audience), the audience was added to the studio recording. James took the song to No. 1 on the Hot Country Singles chart that October. His 13th chart-topper overall, the song was his ninth consecutive country No. 1 in an eventual string of 16 straight chart-toppers in as many single releases, dating between 1967 and 1971.