Watch Denis Rodman sing Happy Birthday to Kim-Jong Un

The Dennis Rodman in North Korea story gets stranger and stranger with every passing day. And that's saying something.
Yesterday, the NBA basketball player-turned-coach made headlines for an impassioned outburst in a CNN interview, and today footage has emerged of his off-key performance of 'Happy Birthday' - sung to North Korean leader Kim Jong Un in front of 14,000 spectators.