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 "P.S. I Love You (Beatles song)"): It was released on 5 October 1962 as the B-side of their debut single "Love Me Do" and is also included on their 1963 album "Please Please Me".
Relevant evidence: No