Nicholas Perri (born May 15, 1984) is an American musician, singer, songwriter, and producer. He is a founding member of Silvertide, Mount Holly, SINAI, and most recently, The Underground Thieves. Perri has also played for Shinedown, Perry Farrell, Matt Sorum, his younger sister Christina Perri, Jimmy Gnecco, Dorothy, and others. In 2009, Perri launched a custom guitar brand called "Perri Ink." On October 3, 2011, he opened the doors to the Perri Ink. Cartel, his first retail store. The store was closed on November 1, 2013, so Perri could continue to focus on music. Nick is currently writing, recording, and touring with his band The Underground Thieves.