Justin Tranteris an American musician, songwriter and designer. His writing credits include collaborations with major artists such as Britney Spears, Gwen Stefani, Selena Gomez, Justin Bieber, and Fall Out Boy. Tranter is also the lead singer of Semi Precious Weapons, a New York rock band.
Justin Tranter and his three older brothers were raised by his parents in Lake Zurich, Illinois. He studied musical theatre at the Chicago Academy for the Arts from 1994–98. While at the Chicago Academy for the Arts, he started an annual AIDS Benefit.
After graduation from high school Tranter moved to Boston to study at the Berklee College of Music. Along with songwriting, he also took classes in business management, in preparation for a career in music. Tranter graduated from Berklee in three years, with a GPA of 3.9 and a degree in songwriting. While at Berklee, Justin founded Musicians With a Mission, a scholarship fund for LGBT youth education.
In 2003, Justin won an Outmusic Award for the song "Blend In," co-written with Stephanie Delk, from "Scratched."
Tranter began his music career on the Lower East Side of New York City's underground club circuit.