This Friday night, May 4, at Mixers one of Southern Maine’s top cover bands, 13 Black, will play ’70s classics; ’80s pop and hair metal; ’90s alternative and today’s radio hits. 13 Black covers such bands as Bon Jovi, The Outfield, Alice in Chains, Foo Fighters, Rage Against The Machine, Mark Ronson, Bryan Adams, Grand Funk, Lenny Kravitz, Michael Jackson and many more. The music starts at 8:30 p.m. There is no cover charge. Mixers is at 136 Sabattus Road, Sabattus.