Ellen DeGeneres Meets 4-Year-Old YouTube Singing Sensation!

As soon as Ellen DeGeneres saw Kai Langer singing on YouTube, she knew she had to have the adorable little guy on her show!
Ch-ch-check out the video (above) to see their priceless first meeting- and to hear his cover of Bruno Mars sung live in the studio!
Wow! Not many performers get a standing ovation, even on Ellen!