Vermont-based rock band Grace Potter and the Nocturnals’ show at Port City Music Hall tonight is 21-plus, but anyone can see the band for free at an in-store performance at 4 p.m. at Bull Moose in Scarborough. The band is releasing a self-titled new album on June 8. Go to www.gracepotter.com to launch the audio player. The show at Port City is 21-plus. Go to www.bullmoose.com or www.portcitymusichall.com for information.

When: 4 p.m. (Bull Moose) and 8 p.m. (Port City Music Hall) today

Where: Bull Moose store, 456 Payne Road, Scarborough; Port City Music Hall, 504 Congress St., Portland

How much: Free (Bull Moose). $20; $40 VIP seating (Port City)