Quan Entertainment told allkpop that after releasing the music video teaser for their mini-album title track "Busan Vacance" yesterday on July 23rd, Skull&Haha has decided to challenge some of the other musical duos in Korea.

The first rival is one of Korea's greatest hip hop duos Leessang! While Leessang's Gil and Gary were on their way home after completing their schedule, Skull&Haha came up and abruptly challenged them to a match in Busan. What was the reaction of Leessang after receiving the challenge request?

Will Skull&Haha stop here after being ignored by an obviously annoyed Leessang? Will the match in Busan between Leessang and Skull&Haha be carried through?

Their agency's reaction to Skull&Haha's recklessness is that Skull&Haha has matured enough in terms of music to gain confidence to challenge Leessang, one of Korea's greatest musicians. They worked earnestly on this album, more than ever before. It is something to look forwards to.

Skull&Haha says they will not stop until the match between them and Leessang takes place.

Who will be their next target?

In related news, Skull&Haha will be releasing their mini-album on July 30th, and the two are practicing all day long in order to put on a perfect live performance.