04/29/2014 09:39 am ET Updated Apr 29, 2014

You Need To Hear Kai Langer Roar Louder Than A Lion, 'Cause He Is A Champion

A lot's been going on for 5-year-old singer Kai Langer since he last appeared on "Ellen." He's going to be a big brother (he plans to name his sister "Dad"), he's gotten taller, his head is now 21 inches around... Oh, and he's missed Ellen's face.

During his Monday appearance on the show, the fedora-wearing cutie performed Katy Perry's "Roar." You can watch that above, and if you can't get enough, there's more Kai below...

(Hat tip: Viral Viral Video)

Kai's Ellen Appearances