Today (June 7), Kelsea Ballerini released the first single, “Legends,” from her upcoming sophomore album. Co-penned by Kelsea, Glen Whitehead and Hillary Lindsey, “Legends” follows a string of hits from Kelsea’s debut album, The First Time, including “Love Me Like You Mean It” (No. 1), “Dibs” (No. 1), “Peter Pan” (No. 1) and “Yeah Boy”…