To celebrate the 50th anniversary of Grateful Dead, the four original members — Mickey Hart, Bill Kreutzmann, Phil Lesh, and Bob Weir — will reunite at Chicago's Soldier Field, nearly 20 years to the day of the last Grateful Dead concert, which took place at the same venue. "Fare Thee Well: Celebrating 50 Years of Grateful Dead" will occur over three nights on July 3, 4, and 5, 2015, marking the original members' last-ever performance together. The band will be joined by Trey Anastasio (guitar), Jeff Chimenti (keyboards), and Bruce Hornsby (piano). The group will perform two sets of music each night.

Joining the original members of Grateful Dead are three musicians who have embodied the band's spirit of musical innovation throughout their eclectic careers. Guitarist Trey Anastasio is best known for his work as the principal songwriter and lead guitarist for touring juggernaut Phish, but he has also found time to score and arrange music for orchestras and Broadway productions such as "Best Musical" TONY nominee 'Hands on a Hardbody.' Pianist Bruce Hornsby had already won the first of his three Grammy Awards when he first guested with Grateful Dead in 1988. Following the death of the band's keyboard player Brent Mydland in 1990, Hornsby toured with the group into 1992, and he has maintained a collaborative relationship with its members ever since. Bay Area native and jazz keyboardist Jeff Chimenti joined Bob Weir's Rat Dog in 1997, and has since worked on projects such as Phil Lesh & Friends, The Other Ones, The Dead, and Furthur.

In the tradition of the original Grateful Dead Ticketing Service, tickets will be available via a first come first serve mail order system starting on January 20th, followed by an online pre-sale through Dead Online Ticketing February 12th and will be available online to the general public on February 14th via Ticketmaster.