Sir James Paul McCartney, (born 18 June 1942) is an English singer-songwriter, multi-instrumentalist, and composer. With John Lennon, George Harrison, and Ringo Starr, he gained worldwide fame as the bassist of the rock band the Beatles, one of the most popular and influential groups in the history of pop music; his songwriting partnership with Lennon is one of the most celebrated of the 20th century. After the band's break-up, he pursued a solo career and formed Wings with his first wife, Linda, and Denny Laine.