Sturgill Simpson, Bob Weir and John Mayer all on one stage? Say less. Country music star with countless genre-bending hits?

Sturgill Simpson joined Dead and Company for a rendition of "Morning Dew" on the second night of the GD 60 shows in San ...

Sturgill Simpson joined Dead & Company for a powerful "Morning Dew" on night two of three in San Francisco's Golden Gate Park.

There was magic in the air of San Francisco over the last three days, with a high concentration centered in Golden Gate Park.

Sturgill Simpson delighted fans at Dead & Company's show, which was held in honor of Grateful Dead's 60th anniversary.