Weir was one of the founding members of the Grateful Dead.
The singer-songwriter wrote and/or sang on songs like “Sugar Magnolia,” “Playing in the Band,” “Truckin,'” “I Need a Miracle,” and “The Other One.”
After the Grateful Dead disbanded in 1995, Weir went on to form several other bands, including Kingfish, Bobby and the Midnites, RatDog, The Other Ones, and, alongside John Mayer, Dead & Company.
In the summer of 2025, Weir was diagnosed with cancer.
Weir died on January 10.