India, Jan. 12 -- Grateful Dead co-founder Bob Weir has died at the age of 78.

Weir, who was diagnosed with cancer in July, died of "underlying lung issues," Weir's team said in a tribute posted on his official Instagram page.

"It is with profound sadness that we share the passing of Bobby Weir," the post said. "He transitioned peacefully, surrounded by loved ones, after courageously beating cancer as only Bobby could. Unfortunately, he succumbed to underlying lung issues".

The statement adds, "For over sixty years, Bobby took to the road. A guitarist, vocalist, storyteller, and founding member of the Grateful Dead. Bobby will forever be a guiding force whose unique artistry reshaped American music. His work did more than fill rooms wi...