Hear Dinosaur Jr.'s Electrifying New Song 'Hold Unknown'

Dinosaur Jr. unveiled the electrifying new song "Hold Unknown," the latest installment in the ongoing Adult Swim Singles program.The fast-paced rocker boasts J.Mascis' trademark guitar heroics and a big, anthemic chorus from the alt-rock Massachusetts trio."Hold Unknown" marks Dinosaur Jr.'s first new song since the release of the alt-rock giants' 2016 album Give a Glimpse of What Yer Not. It's unclear whether "Hold Unknown" is a leftover from that studio LP or a preview of upcoming music f