The String Cheese Incident have announced that Leftover Salmon are the Bluegrass Surprise for their upcoming Suwannee Hulaween festival. The festival has also added Larry & Jenn Keel. The artists will join a lineup that already includes three nights of SCI, as well as STS9, Big Gigantic, Emancipator, Conspirator, Steve Kimock & Friends, Future Rock, Elliot Lipp, Brock Butler, Jennifer Hartswick and many more.

Suwannee Hulaween is set to take place at the Spirit of the Suwannee Music Park in Live Oak, FL. Tickets are still on sale for $189.