Is Jamaica Plain weird? Should it be kept weird? What’s weird in the first place? By David Ertischek on October 7, 2015 Is Jamaica Plain weird? Should it be kept weird? What’s weird in the first place? Is this weird? The Upper Crust condescended wonderfully to entertain the gathered masses at the Jamaica Plain Music Festival, Saturday, Sept. 12, 2015. If you’ve lived in Jamaica Plain for more than a year or two, you’re probably familiar with people who have embraced JP’s “weirdness.”