Justin Bieber Premieres New Song 'Insecurities' on Purpose Tour: Watch

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Justin Bieber performs at KeyArena on March 9, 2016 in Seattle.

During his Purpose Tour stop in Portland, Oregon, on Sunday, Justin Bieber situated himself on a couch onstage and performed a previously unreleased song, reportedly titled "Insecurities."

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The 22-year-old singer launched into an acoustic performance of the song before transitioning into "Home to Mama," his 2014 duet with Cody Simpson

Watch Bieber's performance below: