Dark Star Orchestra
First, full credit to these guys: former singer John Kadlecik did such a great job as a stand-in for Jerry Garcia that he was actually drafted by former Grateful Dead guitarist Bob Weir and bassist Phil Lesh for their new project Further. Furthermore (pun sort of intended) they're legends even as obsessive Dead fans go for not just playing the songs, but actually recreating entire shows note for note, lick for lick.
That being said, with the Alligator show in July, the Jefferson now has a claim to two Grateful Dead tribute bands in six weeks, so it is our civic duty to run the classic joke here:
Q: What did the Deadhead say when he ran out of weed?
A: "Man, this music stinks!"