The Grateful Dead are considering adding dates to their Farewell Tour.

Billboard magazine reported that The Grateful Dead are "considering" adding a show in Santa Clara, Calif., the weekend before the July 4 weekend Fare The Well concerts in Chicago July 4. Chicago's Soldier Field is where the Grateful Dead played their last concert 20 years ago. The Grateful Dead announced the 50th anniversary shows a month ago.

Billboard reported that the Dead are considering the 68,500 capacity Levi's Stadium or San Francisco's AT&T Park.

The rumor was started on the fan blog hypemusicfestivals.com who speculated that the Grateful Dead would add two shows for the weekend of June 27-28.

The Fare The Well tour will feature the original Grateful Dead members Phil Lesh, Bob Weir, Bill Kreutzmann and Mickey Hart with Phish guitarist Trey Anastasio.

The "Fare Thee Well: Celebrating 50 Years of Grateful Dead" concert will be held roughly 20 years to the day of the last full Grateful Dead show.

The Grateful Dead Dead's last performance with Jerry Garcia was on July 9, 1996 in front of a capacity audience of 55,000. The legendary San Francisco jam bad will be joined by keyboardist Bruce Hornsby and Phish guitarist Trey Anastasio for 3 stadium shows at Chicago's Soldier Field.

Hornsby toured with the Dead in 1992. He also played with the band after Jerry Garcia died in 1995. Ron "Pigpen" McKernan, a singer, organist and harmonica player, died in 1973. Keyboardist Keith Godchaux died in 1980.

The surviving members of the Grateful Dead, Bob Weir, 67; Phil Lesh, 74; Mickey Hart, 71; and Bill Kreutzmann, 6, are celebrating the band's 50th anniversary.

"These will be the last shows with the four of us together," Weir told Billboard.

The Grateful Dead formed in San Francisco in 1965. They and the bands Jefferson Airplane, Big Brother and the Holding Company and the Charlatans were the founders of the hippy Bay sound encapsulated at the 1967 Monterey Pop Festival. The Dead's best known songs include "Ripple," "Uncle John's Band," "Truckin'," and "Box of Rain." "Touch of Grey" is the Grateful Dead's only Top 10 hit.

Jerry passed in 1995.