"Every jam band worth its hemp has covered the Dead at some point.
Phish, moe., Umphrey's McGee and others all admit to plucking away
Grateful Dead songs in their early days. Even mainstream acts like
Sublime and Counting Crowes have laid down studio versions of their
favorite tie-dyed tunes. But this undated jam has to be one of the most earnest Grateful Dead covers I've ever heard. Widespread Panic does it right." Click for Video and Article