Heavy Necker.

Friday, March 23

Big rock happenings in downtown Portland tonight. At Port City Music Hall (504 Congress St.), singer Mat Zaro and friends perform the expanded edition of David Bowie’s 1978 live album, Stage, and KGFREEZE opens with its rendition of Iggy Pop’s live album of the same year, TV Eye, at 9 p.m. Tix: $10-$12 (18+). 800-745-3000. portcitymusichall.com. Meanwhile at Geno’s (625 Congress St.), psychedelic Bay State blues-rock power trio Heavy Necker headlines a show with Portland’s Drivetrain, Boston rockers Hey Zeus and Lewiston’s Twin Grizzly at 9 p.m. Tix: $8 (21+). 221-2382.