SCARBOROUGH – Guster will appear live at the Scarborough Bull Moose store at 8 p.m. Wednesday, June 21. The alternative rock group that started in Boston in the ’90s will be promoting the June 20 release of its new album, “Ganging Up on the Sun.”

An acoustic performance of their new material will be followed by a CD signing.

The Scarborough Bull Moose music store is at 456 Payne Road. For more information, call 885-9553.

Guster will perform at 7:30 p.m. Saturday, Aug. 19, at the Cumberland County Civic Center in Portland, with special guests Ray Lamontagne and Rogue Wave.

Tickets are $30, general admission for all ages. They are available at the civic center box office, at all Ticketmaster outlets, call Ticketmaster at 775-3331 or the box office at 775-3458; or go online to www.ticketmaster.com or www.livenation.com.