Tuned In: Kelly Clarkson Brings “Mr. Know It All” To Leno

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Yesterday’s late night music lineup may as well have been a VH1 showcase. The only musical performer we haven’t explicitly championed at some point appeared on Late Night With Jimmy Fallon—after an interview with this month’s Posted artist Demi Lovato. Such a jam-packed lineup does make it difficult to choose the best performance of the night, but we have to give the edge to Kelly Clarkson, who made her first appearance in support of Stronger yesterday on The Tonight Show, where she performed single “Mr. Know It All.”

Clarkson has always had a great voice and an even better sense of how to use it—a fact that makes her live performances thrilling (and certainly contributed to her Idol win). So we were excited to hear her breathing more life into “Mr. Know It All,” a song that we already like but that she opened up for us further with her performance last night. (If we don’t sound quite as enthusiastic as we could, that might be because we not-so-secretly think that, were the situation not so dire out there for rock bands, we think that Clarkson would be a killer frontwoman with serious riffs behind her. But we try not to let that affect our judgment too much.) We are definitely looking forward to Stronger (and to the “Mr. Know It All” video, which should arrive somewhat sooner).

After the jump, see Demi Lovato’s interview on Late Night (introduced by The Roots with a reworded Styx cover: “Domo Arigato, Demi Lovato”) and links to the other performances.

Elsewhere on late night…

Conan: Matt Nathanson, “Faster”
The Late Show With David Letterman: Coldplay, “Paradise”
Jimmy Kimmel Live!: Gavin DeGraw, “Not Over You”
Late Night With Jimmy Fallon: Clap Your Hands Say Yeah