Machine Gun Kelly is bringing his international Mainstream Sellout Tour — a colossal 52 arena run across North America and Europe — to the Spokane Arena on July 25! The multi-platinum selling artist’s first ever arena tour will feature special guests Avril Lavigne & WILLOW at the Spokane show date. The genre-bending performer has amassed over 15.5 billion streams online and sold over 10 million album units.