On this day (20 April) 50 years ago, Marvin Gaye & Tammi Terrell released ‘Ain’t No Mountain High Enough’. The song had been held back by writers Ashford & Simpson from the likes of Dusty Springfield as the their strongest case for entry to Motown. They knew they had a gold-plated disc on their hands. And they were right; they secured a contract with the Detroit-baed label and the song’s success led to a string of more Ashford & Simpson-penned duets (including ‘Two Can Have A Party‘, ‘You’re All I Need to Get By’, ‘Ain’t Nothing Like the Real Thing’, and ‘Your Precious Love’). Bliss.