In addition to reflecting George Harrison's interest in Indian classical music, "If I Needed Someone" was inspired by the music of the Byrds, who in turn had based their sound and image on those of the Beatles after seeing the band's 1964 film "A Hard Day's Night". According to music journalist David Fricke, the composition resulted from "a remarkable exchange of influences between the Beatles and one of their favorite new bands, the Byrds". The two groups formed a friendship in early August 1965, when the Byrds were enjoying international success with their debut single, a folk rock interpretation of Bob Dylan's "Mr. Tambourine Man", and Harrison and John Lennon attended their first shows in London. Although the concerts received unfavourable reviews in the British music press, Harrison lauded the band as "the American Beatles". In late August, the Byrds' Jim (later Roger) McGuinn and David Crosby met up with the Beatles in Los Angeles, where they discussed with Lennon and Harrison the music of Indian sitarist Ravi Shankar and American Indo-jazz pioneer John Coltrane. The meeting led to Harrison introducing the sitar on Lennon's song "Norwegian Wood", and to Crosby and McGuinn incorporating Indian influences into the Byrds' "Why" and "Eight Miles High".