The Beat 12/17: Taylor Swift's 'Trouble' Video, Paul McCartney + Nirvana on 'SNL'

Welcome to the Monday, December 17 edition of "The Beat," Billboard.com's daily music news show, featuring host Jonathan Brooks running down the latest music news -- who's making headlines and who's topping the charts.

In today's episode, J.B. has the headlines about Paul McCartney's duet with Nirvana on "Saturday Night Live," Taylor Swift's new music video, Kelly Clarkson's engagement, and more. Tune in below!

Be sure to come back to Billboard.com each weekday afternoon to watch a fresh episode of "The Beat."