This Vine Of Jessie J Singing With Her Mouth Closed Is Insane January 20, 2015BuzzFeed - Latest Just a crazy hidden talent bang, banging into your home. We all know Jessie J has an amazing voice. gurl.com With a million crazy and wonderful talents. BBC But we never knew she could do THIS. Who knew singing with your mouth closed could be so impressive, so odd, so satisfying? vine.co She revealed the party trick on The Graham Norton Show and you can watch the full clip here. youtube.com View Entire List ›