The Beetles had their first American number one hit YouTube Wikki It was also the group's first American number-one hit, entering the Billboard Hot 100 chart on 18 January 1964 at number 45 and starting the British Invasion of the American music industry. By 1 February it topped the Hot 100, and stayed there for seven weeks before being replaced by "She Loves You". It remained on the Billboard chart for 15 weeks.[2] "I Want to Hold Your Hand" became the Beatles' best-selling single worldwide selling more than 12 million copies.