More popular than Jesus a minor panic when a firecracker was set off on stage during the evening performance, which led the group to believe they were the target of gunfire. The Beatles hated the tour, partly due to the controversy and adverse reaction from Lennon's comments, and were unhappy about Epstein continuing to organise live performances that were increasingly at odds with their studio work. The controversy had also overshadowed the US release of their 1966 album "Revolver", which the band considered to be their best and most mature musical statement up to that point. Following the tour, Harrison seriously contemplated leaving the
Fifth Beatle the "fifth Beatle", but over the years he and producer George Martin have clearly been recognised as the inner circle members who most profoundly affected the band's career. In an interview in the 1990s describing Epstein's involvement in the band's rise to fame, Martin declared "He's the fifth Beatle, if there ever was one." McCartney summarized the importance of Epstein to the Beatles when he was interviewed in 1997 for a BBC documentary about Epstein. He stated: "If anyone was the fifth Beatle, it was Brian." In 2013 Epstein was the subject of a graphic novel entitled "The Fifth Beatle"