4 year old kid serenade Ellen

His video has gone viral, and this adorable young YouTube singer came to the show to serenade Ellen Degeneres in person. Not every 4-year-old in a fedora is this charming, but Kai Langer made a lasting impression on The Ellen Show. He even sang for her, Grenade by Bruno Mars! This kid has a serious talent!

Watch the cute video after the click.

Full Interview Video