Trey Anastasio, Sturgill Simpson and Billy Strings joined the Grateful Dead offshoot for three San Francisco shows celebrating 60 years of Grateful Dead music.

While only two of the original Grateful Dead band members are in Dead & Company, that didn't matter to the 60,000 thrilled fans in Golden Gate Park.

Grateful Dead offshoot Dead & Company and Sturgill Simpson combine for memorable moment at Golden Gate Park in San Francisco.