Regner Rocks 2021 Lineup This is the lineup for the inaugural Regner Rocks concert series. Free concerts for music and nature lovers in Washington County. Food and beverages will be available for purchase. In case of inclement weather, concerts will be moved to The Bend Theatre.Get directions to Regner Rocks: Click Here SEPTEMBER Thursday, September 2 Honey Goats 5:30pm-6:30pm MORE Soggy Prairie 7:00pm-9:00pm MORE Thursday, September 9 Betsy Ade & the Well-Known Strangers MORE Regner Park in West Bend