Born on May 30, 1970, Jeffrey Sebelia hails from Los Angeles, California. He is a designer for rock musicians. He used to be a member of the band Lifter, but when that disbanded he turned his attention to clothes. He took sewing classes at Los Angeles Trade-Technical College, which led him to launch his own line called Cosa Nostra. Sebelia was the grand winner in the third season of the reality TV series "Project Runway" during its Season Finale held at Olympus Fashion Week. Since then, he was featured in magazines and has worked on a new line called Jeffrey Sebelia. In 2013, he became of the contestants of
Project Runway All Stars season 3.
He was eliminated during the Marge Simpson challenge.