Bob Weir, the legendary guitarist and one of the founding members of the Grateful Dead, has passed away at the age of 78, according to an announcement on his official Instagram account made on Saturday.

The poignant message shared that Weir died peacefully, surrounded by his family and friends. He had been battling cancer and ultimately succumbed to complications related to lung issues.

“It is with deep sadness that we announce the passing of Bobby Weir,” the statement began. “He transitioned peacefully, surrounded by loved ones, after bravely overcoming cancer as only Bobby could. Sadly, he succumbed to underlying lung conditions.”

The statement continued, “Bobby will always be remembered as a guiding force whose extraordinary talent transformed American music. His contributions went beyond merely playing music; they were like warm rays of sunshine that touched the soul, fostering a sense of community, a unique language, and a feeling of family that resonates with generations of fans.”

“Each chord he struck and every lyric he sang became part of the stories he crafted. Through his music, he invited everyone to feel, to question, to explore, and to find belonging,” the tribute concluded.

Weir had been diagnosed with cancer last summer, shortly before headlining a series of shows at Golden Gate Park in San Francisco.

Grateful Dead guitarist and founding member Bob Weir has died at the age of 78, the news confirmed in a statement on his official Instagram account

The post revealed that Weir passed away peacefully, surrounded by family and friends, after battling cancer and ultimately succumbing to underlying lung issues; (Weir in 1970)

Weir had been diagnosed with cancer last summer, shortly before headlining a series of shows at Golden Gate Park in San Francisco; (The Grateful Dead pose on the corner of 20th and Connecticut in Potrero Hill, San Francisco, California, circa 1965. Left to right: Phil Lesh, Jerry Garcia (1942 – 1995), Ron ‘Pigpen’ McKernan (1946 – 1973), Bob Weir and Bill Kreutzmann)

His musical journey began at just 16, when he wandered into a Palo Alto music store following the sound of a banjo and met Jerry Garcia, who was strumming inside, per reports.

The pair played together all night, sparking the formation of The Grateful Dead alongside Ron ‘Pigpen’ McKernan, Phil Lesh, and Bill Kreutzmann –  the band’s five founding members.

Weir was born Robert Hall Weir in San Francisco on October 16, 1947, and was adopted as an infant. 

He grew up in the Bay Area, struggling with undiagnosed dyslexia and behavioral challenges, per reports.

He started playing guitar at 13 and performed at local folk clubs. 

In 1965, he met Garcia in the Palo Alto music store and the two formed Mother McCree’s Uptown Jug Champions, which later became the Warlocks and eventually the Grateful Dead. 

Weir briefly left the band in 1968 but returned to continue contributing to its mix of country-rock and improvisational music.

‘It is with profound sadness that we share the passing of Bobby Weir. He transitioned peacefully, surrounded by loved ones, after courageously beating cancer as only Bobby could. Unfortunately, he succumbed to underlying lung issues,’ the message read; (L-R: Bob Weir, Bill Kreutzmann, Jerry Garcia, Phil Lesh in 1968)

His musical journey began at just 16, when he wandered into a Palo Alto music store following the sound of a banjo and met Jerry Garcia, who was strumming inside; (Phil Lesh (L) and Bob Weir in 1993)

Weir was born Robert Hall Weir in San Francisco on October 16, 1947, and was adopted as an infant; (pictured 1997)

Taylor Swift posed with Weir at the 67th Grammy Awards in 2025

After the death of fellow founding member Ron ‘Pigpen’ McKernan in 1972, Weir assumed a larger role as a vocalist and songwriter. 

He released solo albums including Ace and Heaven Help the Fool and performed with several side projects, including Kingfish, the Bob Weir Band, Bobby and the Midnites, RatDog, Furthur, and The Other Ones. 

He also took on leadership roles within the band, helping guide its direction after Garcia’s health and addiction challenges.

In later years, Weir continued to perform, preserving the Grateful Dead’s music through multiple touring projects and collaborations with former band members.

The statement announcing his death highlighted his long-term vision for the band’s legacy: ‘There is no final curtain here, not really… He often spoke of a 300-year legacy, determined to ensure the songbook would endure long after him. 

‘May that dream live on through future generations of Dead Heads.’