Julian Fernando Casablancas (born August 23, 1978) is an American musician, singer, and songwriter. He is the lead vocalist of the rock band The Strokes. In addition to his work with The Strokes, Casablancas has led a solo career during the band's hiatus, releasing the album Phrazes for the Young on November 3, 2009.

In 2013, he formed the alternative rock project Julian Casablancas + The Voidz. They released their first album, Tyranny, in 2014. His own label, Cult Records, distributed the album, which earned the 50th place in NME's Top 50 Albums Of 2014 list. Over the years, Casablancas has also collaborated with several other artists on their work, examples being The Lonely Island's 2009 album Incredibad and Daft Punk's 2013 album Random Access Memories.