About the Author
Chad O'Carroll
Chad O'Carroll has written on North Korea since 2010 and writes between London and Seoul.
Dennis Rodman sung "Happy Birthday" to Kim Jong Un at an exhibition match in Pyongyang held to mark Kim Jong Un's 31st birthday.
Rodman dedicated the game, which was between a team of former NBA all-stars and a senior North Korean national team, to Supreme Leader Kim Jong Un, his wife Ri Sol Ju, and accompanying officials.