The full schedule for the Sternwheel Regatta was announced Thursday. The festival returns to the capital city this summer after a 12-year absence and it’s scheduled to run June 30 through July 4. Mayor Amy Goodwin said residents have been asking the city to bring the event back since it ended in 2009. Martina McBride, Rick Springfield, The Four Tops and The Temptations will headline the event. The full schedule is posted on the City of Charleston website.