“Ain’t No Mountain High Enough” is one of those rare songs with two definitive hit versions. The song, written by Nickolas Ashford and Valerie Simpson in 1966 became a hit in 1967 as a duet for Marvin Gaye and Tammi Terrell. Then, the tune climbed the charts again in 1970 in a solo version by … Continue reading "Ain’t No Mountain High Enough, Ain’t No Valley Low Enough"