The Beatles became so popular that no regular concert venue was big enough for their concerts. This led to them playing the first ever stadium rock concert at Shea Stadium in America, to around 50,000 people. The Beatles stopped touring and playing live music in 1966 because they were sick of audiences screaming so loudly that their music could not be heard. They were also tired of the pressures of touring. Among other things, they were so popular that thousands of people would gather outside the hotels they stayed in day and night meaning that they could never leave their rooms unless they were playing a concert.