"We didn't forget where we came from, right?" asked Gaslight Anthem lead singer Brian Fallon Friday Night at the Convention Hall in Asbury Park, which was an immediately recognized hat-tip; the crowd immediately launched into a deep "BRUUUUUUCCEE." And their king arrived to perform "American Slang" with the Jersey alt rockers. Check out the video after the jump. [videoembed size="full_width" ...