He appeared as himself in an episode of the television series Gossip Girl in 2011 and in the 2012 movie Arbitrage. Jamie Johnson has also worked as a fashion designer and a journalist. He wrote a weekly column for Vanity Fair online called The One Percent and wrote a column of the same name for The Huffington Post in 2008. He also wrote a piece for The New York Times in 2014. His fashion line Black Sweater was launched in 2011 at Bergdorf Goodman.