At Fillmore East June 27, the Fillmore East closed, and the band were invited to play a final, invitation-only concert, along with Edgar Winter, the Beach Boys and Country Joe McDonald. The Beach Boys initially refused to perform unless they headlined the event, but Graham refused, telling them that the Allman Brothers would be closing the show, and they were free to leave if they disagreed. The Allman Brothers' performance was used for additional tracks when an expanded version of "At Fillmore East", "The Fillmore Concerts", was reissued on CD. "At Fillmore East" showcases the band's eclectic mixture of blues, rock, country, and
The Fillmore subsequently used at the Fillmore East and Fillmore West venues. In the mid-1960s, the Fillmore Auditorium became the focal point for psychedelic music and the counterculture in general, with such acts as The Grateful Dead, The Steve Miller Band, Jefferson Airplane, Quicksilver Messenger Service, Moby Grape, The Doors, Jimi Hendrix Experience, The Byrds, Big Brother and the Holding Company, Santana, Frank Zappa's The Mothers of Invention, and British acts The Who, Cream, and Pink Floyd all performing at the venue. Besides rock, Graham also featured non-rock acts such as Lenny Bruce, Miles Davis, Rahsaan Roland Kirk, Charles Lloyd, Aretha Franklin,