The amazing A Cappella group Pentatonix is here today to perform the Evolution of Beyoncé. Incredible!
The amazing Demi Lovato is here today to perform “Neon Lights”! Watch the full performance here.
The adorable 3-year-old Heaven came to perform with her mom.
Ellen and Nick Cannon get sexy on stage.
Ylvis and Ellen performed 'The Fox'. It was magical.
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.