Because it's a 한국 party, all the music are Korean and K-pop is well... Crazy enough already. Secondly, ALL the players must have little to no knowledge of Korean language so when they try to vocalize it was super funny.
That very night I also found out that Joyce's massive knowledge of Korea even extends to K-pop!. During the game she'll be saying to me things like "hey isn't that the new song from XXboy group" or "omg this song is so old" and I'm like wow~ Because some of the songs are really new and/or is rather out of her style?. Sure got me amused hehe happy EZT :)