American Astronaut is a bizarre new film classic, celebrating American underground rock, made by and starring Cory McAbee and other affiliates of the Billy Nayer Show, which has long stood as a shining example of the collision between alternative rock, filmmaking and performance art. A perpetually rotating stable of New York musicians have made up the Billy Nayer Show over the years, creating a prolific and chameleon-like body of work. Cory McAbee and co. picked up where acts like Frank Zappa and other disturbing mutations of popular music left off. With emphasis spread equally over recordings and live performances, the Billy Nayer Show also has quite a reputation for energetic and strange concerts. You never know quite what you'll get when you become an audience member at the Billy Nayer Show. 

[Northern, with Romanteek, the Olympia Free Choir, 8 p.m., $6, 321 Fourth Ave., Olympia]