Biography: Frank Anthony Iero, Jr. is an American musician who is the rhythm guitarist and backup vocalist of the rock band My Chemical Romance and as a guitarist in the supergroup L.S. Dunes. He was also the lead vocalist of the post-hardcore band Leathermouth and has a solo project titled Frank Iero and the Future Violents. He released his debut solo album titled Stomachaches on August 26, 2014. From Wikipedia, the free encyclopedia.