They arrived in a fleet of trucks and trailers, pulling into a parking lot where hundreds cheered their return to the Valley.Volunteers played an integral role in their safe delivery, acting as traffic cops while keeping the scene from crumbling into chaos.One by one, cars were led back to the trucks, chaperoned by their host. Just who did this rock star ovation belong to? Was it Carrie Underwood and Hunter Hayes, the hot-ticket country act that played the Stockton Arena on Tuesday evening?No, for many, it was an even tastier treat.