possession after leaving Quicksilver Messenger Service) joined as a belated replacement for Balin. The East Coast leg of the tour included a major free concert in Central Park that drew over 50,000 attendees. They returned to the West Coast in September, playing concerts in San Diego, Hollywood, Phoenix and Albuquerque. The tour culminated in two shows at the Winterland Ballroom in San Francisco (September 21–22), both of which were recorded. At the end of the second show, the group was joined on stage by Balin, who sang lead vocals on "Volunteers" and the final song, "You Wear Your Dresses Too Short". The Winterland shows were the last live performances by Jefferson Airplane[22] until their reunion in 1989. A new live album, Thirty Seconds Over Winterland, was culled from the tour and released in April 1973. Later that year, Kaukonen and Casady decided to focus on Hot Tuna as a full-time endeavor, effectively leaving the band; however, no official announcement was ever released. By December 1973, RCA had terminated the band's salaries, resulting in Freiberg being forced to draw unemployment to maintain his house payments. Following the commercially unsuccessful Baron von Tollbooth & the Chrome Nun (1973; credited to Kantner, Slick and Freiberg) and Manhole (1974; credited to Slick), Jefferson Airplane evolved into Jefferson Starship in January 1974. The initial lineup consisted of the remaining members of Jefferson Airplane (Kantner, Slick, Freiberg, Barbata, Creach); bassist Peter Kaukonen (soon replaced by British multi-instrumentalist Pete Sears, a veteran of Creach's debut solo album and Manhole); and lead guitarist Craig Chaquico, a member of Grunt Records band Jack Traylor and Steelwind who contributed to the Kantner/Slick solo albums beginning with Sunfighter. They appropriated the name from Kantner's Blows Against the Empire, with Bill Thompson convincing the group that maintaining the connection was prudent from a business standpoint. Reflecting the transition, the album Dragon Fly, released in September 1974, was credited to Slick, Kantner and Jefferson Starship. Side projects and spin-off bands Reunions and other performances, 1989–present After the acrimonious events that resulted in Jefferson Starship's 1984 evolution into Starship, Kantner reunited with Balin (who joined Jefferson Starship in January 1975 following a guest appearance on Dragon Fly before leaving once more in 1978) and Casady in 1985 to form the KBC Band. They released their only album, KBC Band, in 1986 on Arista Records. On March 4, 1988, Slick made a cameo appearance during