GE3KS, a 1980s party band from Portland, will perform at 8:30 p.m. Friday, Oct. 9, at Mixers in Sabattus. The group will play music from the 1980s, including new wave, one-hit wonders, pop and rap. The show is free. Attendees must be 21 or older. FMI: 207-375-4188.