Passage: Former Rolling Stone associate editor Robert Greenfield compared the Beatles to Picasso, as "artists who broke through the constraints of their time period to come up with something that was unique and original ... [I]n the form of popular music, no one will ever be more revolutionary, more creative and more distinctive..." The British poet Philip Larkin described their work as "an enchanting and intoxicating hybrid of Negro rock-and-roll with their own adolescent romanticism", and "the first advance in popular music since the War".They not only sparked the British Invasion of the United States, they became a globally influential phenomenon as well. From the 1920s, the United States had dominated popular entertainment culture throughout much of the world, via Hollywood movies, jazz, the music of Broadway and Tin Pan Alley and, later, the rock and roll that first emerged in Memphis, Tennessee. The Beatles are regarded as British cultural icons, with young adults from abroad naming the band among a group of people that they most associated with UK culture.Their musical innovations and commercial success inspired musicians worldwide. Many artists have acknowledged the Beatles' influence and enjoyed chart success with covers of their songs. On radio, their arrival marked the beginning of a new era; in 1968 the programme director of New York's WABC radio station forbade his DJs from playing any "pre-Beatles" music, marking the defining line of what would be considered oldies on American radio. They helped to redefine the album as something more than just a few hits padded out with "filler", and they were primary innovators of the modern music video. The Shea Stadium show with which they opened their 1965 North American tour attracted an estimated 55,600 people, then the largest audience in concert history; Spitz describes the event as a "major breakthrough ... a giant step toward reshaping the concert business". Emulation of their clothing and especially their hairstyles, which became a mark of rebellion, had a...

Question: What was the term used to describe the sociocultural movement the Beatles instilled?
the Beatlemania fad