Also don't know if it qualifies as rock.
There is an old Paul Masson winery near where I grew up. It's now called the Mountain Winery and hosts a summer concert series. You got to taste wine between sets.
I saw B.B. King play there. He did something like 5 encores and invited the opening act onstage to play with him. The opening act was some [then] unknown guy named Robert Cray.
Made me pick up the guitar.