[youtube]http://www.youtube.com/watch?v=oScLRORdmqc[/youtube] Tonight, rock band Rotary Downs plays the Ogden Museum of Southern Art’s “Ogden After Hours” series at 6 p.m. For the occasion, the band will go largely acoustic as they do in this video for the song “Vampires Werewolves,” which features drummer Zack Smith on the plastic watering can.