
Here's a complex question that requires someone to reason about the input, can you answer it?
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?


United States
