Sir James Paul McCartney CH MBE (born 18 June 1942) is an English singer-songwriter, multi-instrumentalist, and composer. He gained worldwide fame as the bass guitarist and singer for the rock band the Beatles, widely considered the most popular and influential group in the history of popular music. McCartney is one of the most successful composers and performers of all time. He has written, or co-written, 32 songs that have reached number one on the Billboard Hot 100, and as of 2009[update] he had 25. 5 million RIAA-certified units in the United States. His songwriting partnership with John Lennon remains the most successful in history. After the group disbanded in 1970, he pursued a solo career and formed the band Wings with his first wife, Linda, and Denny Laine.