Ever heard of lightning striking in the same place four times? The Riverfront Times' annual summer musical festival will take place in the Grove for the fourth year in a row on Saturday, June 17, with a kick-off show at Atomic Cowboy on the night of Friday, June 16.
Now dubbed ShowcaseSTL, this celebration of St. Louis music boasts the largest all-local lineup yet, with more than 100 acts set to perform.…