Bridgit Mendler is on the show today!

The adorable singer, Kai, doing the best Bruno Mars cover we’ve ever seen.

What a great concert.

Everybody was jumpin’, jumpin’. Except for Louis. That was the highest he got all concert.

The Blue Man Group performed!  They have a lot of names for butts.

Amazing concert with an amazing girl.

One more day to the big day! Watch TaylorSwift’s crazy outdoor concert on my show tomorrow!