Kelly Clarkson may have mastered the art of the cover song on her daytime ... to sing a gospel version of Clarkson's 2012 smash hit "Stronger (What Doesn't Kill You)," and he blew it out of ...

"That's the greatest cover I've ever heard of any song I've ever performed," Kelly said on her talk show ... and comedy variety game show that draws inspiration from the most popular "Tonight ...

Check out a sneak peek at the upcoming episode where Porter sings a Gospel rendition of Kelly Clarkson's "Stronger ... variety game show that draws inspiration from the most popular "Tonight ...