Melody-driven country trio Lady Antebellum will bring one of Denver’s biggest summer concerts to Fiddler’s Green Amphitheatre on July 9, with opening sets from Jake Owen and Maddie & Tae. Tickets for the all-ages show, $18.75-$110, are on sale at 10 a.m. Jan. 24 following the Jan. 23 pre-sale at axs.com (use the password FIDDLERS). British pop-rock quartet The 1975 is set to headline Red Rocks Amphitheatre on May 11 as part of its North American headlining tour.