If you thought that the "leader of the free world", Obama, and the "chosen one", Kim Jong Un, hated each other, think again. People in the Hongdae area of Seoul were treated to a duet version of Eric Carmen's classic All By Myself , performed by the two leaders.
Turns out it was for a Korean electronics store called eNuri. Funny what leaders do on the side, eh?
Source - Jim Chocha