There are more great shows coming to south Texas. This time around, it's the Heritage Hunter Tour with Opeth & Mastadon, with special guest Ghost, Saturday, April 21st at Concrete Street Amphitheater. Tickets go on sale this Friday, February 3rd at 10am at all Ticketmaster outlets, and at Concretestreet.net. Better yet, want to go for free? Check it out below.