Will Shania Twain Ever Sing Live Again?

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Shania Twain is on a journey to regain her voice and her confidence, and she chronicles her experiences in her new show on OWN, "Why Not? With Shania Twain." Will she ever regain her ability to belt it out like she used to? Watch the video.
In the episode "What Happens in Vegas," airing this Sunday at 10 p.m. ET/PT on OWN, Shania travels to Sin City, where she's been offered the headline resident singing gig at Caesars Palace -- one of the most prestigious jobs in the music industry. But after an extended break from the biz, does she still have the chops to re-enter the limelight and pull it off?