<P> The original 1967 version of "Ain't No Mountain High Enough" was a top twenty hit . According to record producers, Terrell was a little nervous and intimidated during recording because she did not rehearse the lyrics . Terrell recorded her vocals alone with producers Harvey Fuqua and Johnny Bristol, who added Gaye's vocal at a later date . "Ain't No Mountain" peaked at number nineteen on the Billboard pop charts, and went to number three on the R&B charts . </P> <P> This original version of "Ain't No Mountain", produced by Fuqua and Bristol, was a care - free, danceable, and romantic love song that became the signature duet between Gaye and Terrell . Its success led to a string of more Ashford / Simpson penned duets (including "You're All I Need to Get By", "Ain't Nothing Like the Real Thing", and "Your Precious Love"). </P> <P> The Gaye / Terrell version was inducted into the Grammy Hall of Fame in 1999, and is regarded today as one of the most important records ever released by Motown . </P> <P> Diana Ross & The Supremes recorded a version of "Ain't No Mountain High Enough" which was more faithful to the Terrell - Gaye original version as a duet with The Temptations . That song was an album cut from a joint LP released by Motown Records in 1968 on the two superstar groups, titled Diana Ross & the Supremes Join The Temptations . </P>

Who sings the song ain't no mountain high enough