I don’t know a lot about this one but look forward to hearing more:
New beer-tasting and classic rock music festival in downtown Mankato, MN, June 23-24. Sample 100 of the nation’s best brews from 4-7 p.m. each day. Live music from 4-11 p.m., including Rock & Roll Hall-of-Famer Eric Burdon & The Animals, Lamont Cranston, The Butanes, 40 Watt Bulb, Hairball and City Mouse. Two day passes start at just $15, and are available www.ticketmaster.com Contact firstname.lastname@example.org for more info.
It looks as if NationalBrewFest.com also has more information.