"When a Man Loves a Woman" is a song written by Calvin Lewis and Andrew Wright which was recorded by Percy Sledge in 1966 at Norala Sound Studio in Sheffield, Alabama. It made number one on both the Billboard Hot 100 and R&B singles charts, and was listed 53rd in Rolling Stone's 500 Greatest Songs of All Time. Source: en.wikipedia.org/wiki/When_a_Man_Loves_a_Woman_%28song%29