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Justin Bieber visits 'The Late Show With David Letterman' in NYC

Justin Bieber leaves a taping of 'The Late Show with David Letterman' at Ed Sullivan Theater in New York City. Pictured: Justin Bieber Ref: SPL407694 200612 Picture by: Taamallah / Splash News Splash News and Pictures Los Angeles: 310-821-2666 New York: 212-619-2666 London: 870-934-2666 photodesk@splashnews.com

21 of Justin Bieber's Most Ridiculous Looks

Justin Bieber is only 19, but he's already worn more crazy ensembles than people twice his age! Check out some of the most bizarre.