Question: On this day in 1964 which two famous classic rockers received mild electrical shocks from underground microphones while playing a show at an ice hockey arena in Stockholm, Sweden?

Answer: On their second visit to Sweden, The Beatles played two shows at an ice hockey arena, the Johanneshovs Isstadion, Stockholm. During the first show, both Paul McCartney and John Lennon received mild electrical shocks from ungrounded microphones. Supporting acts included The Kays, The Moonlighters, and The Streaplers.