It happened over there, or the day that The Beatles released "Please please me" in the UK. It was their follow up single to "Love me do" a song that just cracked the Top 20.
In a few weeks, "Please please me" topped the British charts and earned their first # 1 and million seller. It flopped in the US on the VJ label.
The song was re released in 1964 and did very well in the early days of Beatlemania in the US.
PS: You can listen to my show (Canto Talk).