Why 'Level Up,' 'Shiggy' and BTS 'Base Line' Challenges Are All the Rage

It's the summer of the dance challenge! There's the "Shiggy," aka the "In My Feelings" challenge. That paved the way for the "Level Up Challenge," started by Ciara. And now, a K-pop star is at the center of the newest dance craze, called the "Base Line Challenge," which was made popular by BTS fans. InsideEdition.com's Leigh Scheps (http://twitter.com/LeighTVReporter) has more.