Don't miss Loco Vocals this Thursday at Fireman's Park! Hailing from Beaver Dam, Loco Vocals is known for their tight vocal harmonies from the group’s singers, Jenny Addison, Rick Ramirez, Jay Wilkins and Cheryl Zeman. Musicians in the group include Tanya Diggins on piano and keyboards, Ben Grambsch on guitars, Jeff Mroz on bass, David Saniter on drums and Eric Schumann with sound mixing.