There's no doubt about it -- Marvin Gaye and Tammi Terrell had something really special. Though Gaye had recorded duets with Kim Weston and Mary Wells, it was his vocal pairings with Terrell that were the biggest hits. The New York-based songwriting team of Ashford and Simpson began writing for Motown after writing "Let's Get Stoned," a number one R&B/Top 40 pop hit for Ray Charles. Their first hit with Gaye and Terrell was the 1967 Top Five R&B/Top 20 pop smash "Ain't No Mountain High Enough,"produced by Harvey Fuqua and Johnny Bristol. When the songwriters expressed an interest in producing the singers, the Detroit-based label flew them in for a week to work in their music room where Nick Ashford would come up with lyric ideas while Valerie Simpson sat at the piano. One resulting song from the sessions was "Ain't Nothing Like the Real Thing." The track has a gentle, breezy quality with a tender, subdued musical motif that has flutes that bring to mind the happy chirping of birds. It's also notable for its semi lack of a musical introduction -- the record just seems to glide in. Terrell's vocals sweetly dominate while Gaye relishes her direct affections. "Ain't Nothing Like the Real Thing" went to number one R&B and number eight pop in the summer of 1968.