Jimmy Fallon, Kelly Clarkson Duets Video Hits No. 1 On Most Popular On YouTube List [Video]

This video titled “History of Duets with Kelly Clarkson” from The Tonight Show Starring Jimmy Fallon YouTube channel is so popular that YouTube lists it as their top video on the “Popular Right Now” by #PopularOnYouTube 200 videos, all of which have received a combined 99,972,146 views and was updated today, Tuesday, March 3.