Question: The phenomenon known as Beatlemania originated in the United Kingdom, birthplace of the Beatles, when the band first realised enormous popularity there in 1963, the Beatles achieved a commercial breakthrough with their second UK single release, "Please Please Me", a song and the second single released by English rock group the Beatles in the United Kingdom, and the first to be issued, in which country?
Sentence (from "Beatles and Rolling Stones rivalry"): The Rolling Stones were a struggling band at the time and the Beatles had become famous as a self contained Rock Band.
Relevant evidence: No