Superstars Smash Mouth and a founding member of Styx are set to headline the key music portion of Sterlingfest this July. Sterlingfest will be held July 26, 27 and 28 in Dodge Park and the surrounding city campus of Sterling Heights. Sterlingfest hours are 10 a.m. to 11 p.m. Although the festival boasts a series of attractions from an art fair to a midway, musical acts remain one of the most popular aspects according to Sterling Heights Director of Community Relations Bridget Kozlowski.