Event Facebook Page Budweiser’s Not So Secret Summer Music Bash is on Saturday, August 27 from 4-10 p.m. at 1225 17th Street. They haven’t announced any of the acts yet, simply stating they’ll have “top local acts from rock and roll to bluegrass–and one big, bad headlining band that we know the people of Denver love.” The festival is free, with discounted beer for sale on site.