John Lennon and Paul McCartney the greatest Songwriters of Alltime. Here are some of their songs being covered by other artists such as David Bowie, Rolling Stones, Paul Weller, Stevie Wonder, Tina Turner, Rod Stewart, Elbow, World Party, Teenage Fanclub, Siouxsie and the Banshees, Johnny Cash, Joe Cocker….Shirley Bassey, Elton John, Blackstreet and Ray Charles….