Justin Bieber Appeared On Shark Tank To Endorse a High-End Office Chair {WATCH}

Justin Bieber made an appearance on Friday’s (January 8th) episode of Shark Tank to endorse a high-end office chair.

He demonstrated his perfect posture in the $799 BackStrong C1 chair.   Even with Bieber’s endorsement, the sharks chose not to invest $500,000 in Bing Howenstein’s chair in exchange for a 2.5% piece of his company, ALL33.