Bob Weir, one of the founding members of the legendary rock band Grateful Dead, has died from "underlying lung issues" at 78.

Weir, who, after "courageously beating cancer," died "peacefully" on Saturday, Jan. 10, according to a post shared on his Instagram. A representative for Weir confirmed the post's accuracy to USA TODAY, but had no further information at this time.

"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," the post reads. "His work did more than fill rooms with music; it was warm sunlight that filled the soul, building a community, a language, and a feeling of family that generations of fans carry with them."

Weir is survived by hi family, including wife Natascha Münter and daughters, Monet and Chloe, who are requesting privacy "during this difficult time" while offering their "gratitude for the outpouring of love, support, and remembrance."

"May we honor him not only in sorrow, but in how bravely we continue with open hearts, steady steps, and the music leading us home," the post concludes. "Hang it up and see what tomorrow brings."