Shania Twain Sides With Swift and Bieber on 'Watch What Happens Live'

In celebration of her recently released CD/DVD, Shania: Still the One Live From Vegas, and the announcement of her final tour, Shania Twain has been making the media rounds. On Wednesday night, the pop-country powerhouse was a guest (along with former Gossip Girl star Penn Badgley) on Bravo’s loosely formatted…