Sir James Paul McCartney is an English singer, songwriter and musician who gained worldwide fame as co-lead vocalist, co-songwriter and bassist for the Beatles. One of the most successful composers and performers of all time, he is known for his melodic approach to bass-playing, versatile and wide tenor vocal range, and musical eclecticism, exploring styles ranging from pre–rock 'n' roll pop to classical and electronica. His songwriting partnership with John Lennon remains the most successful in history.