"Help!" is a song by The Beatles that served as the title song for both the 1965 film and its soundtrack album. It was also released as a single, and was number one for three weeks in both the United States and the United Kingdom. "Help!" was written primarily by John Lennon, but credited (as were all Beatles songs written by either person) to Lennon/McCartney. Paul McCartney reports that he had a hand in writing the song as well, being called in "to complete it" in a two-hour joint writing session on 4 April 1965 at Lennon's house in Weybridge. He later said that the title was "out of desperation".
The documentary series The Beatles Anthology revealed that Lennon wrote the lyrics of the song to express his stress after the Beatles' quick rise to success. "I was fat and depressed and I was crying out for 'Help'," Lennon told Playboy. Writer Ian MacDonald describes the song as the "first crack in the protective shell" Lennon had built around his fragile emotions during the Beatles' rise to fame, and an important milestone in his songwriting style.
In the 1970 Rolling Stone "Lennon Remembers" interviews, Lennon said that because of its honesty it was one of his favourites among the Beatles songs he wrote, but he wished they had recorded it at a slower tempo. In these interviews, Lennon said he felt that "Help!" and "Strawberry Fields Forever" were his most genuine Beatles songs and not just songs written to order.