Fronted by singer-songwriter/guitarist J Mascis, Dinosaur Jr. formed in Massachusetts in 1984. Their emergence was a musical shot heard round the world as Mascis and company put the heroics of lead guitar back into the forefront of the indie rock realm-amazingly, it was a revolutionary idea at the time. Post-punk and pre-grunge, they were an intense force to be reckoned with, and when the band signed to Sire in '91, Mascis' shreddingly unique alt-rock sound was cranked up for vast new audiences of eardrums. These expanded remasters of Dinosaur Jr's first two major label albums spotlight one of the most distinctive and influential artists of the '90s in prime form.