The 1972 hit song 'Layla' by Derek and the Dominos was a chart-topping single that has since become a classic rock staple. The song was written by Eric Clapton and Jim Gordon, and its title was inspired by the story of Layla and Majnun, a classical Persian poem. The other 1972 hit song mentioned in the crossword is 'PAPA Was a Rollin' Stone' by The Temptations. It was released as a single from their 1972 album All Directions and went on to become one of the group's signature songs.