OTEP’s The Art of Dissent U.S. tour comes to Sapphire in Auburn at 7 p.m. Friday for a 21-plus show. OTEP is from Los Angeles, California, formed in 2000. They have released two EPs, eight studio albums and one live album, and are currently signed with Napalm Records. Also appearing is The World Over, who played on the very last Vans Warped Tour in 2018, as well as the alternative metal band One Day Waiting from the Hudson Valley in New York. They will be joined by Maine’s very own Ascent To Power and locals The Struggle Within and Fates Last Fight. A limited amount of tickets will be available at the door. For more information about this show, call 207-241-0066.