Muzie called out Yoo Se Yoon for rejecting ad offers for UV.

The members of the comedy-music duo featured as guests on the April 6th installment of 'Knowing Brothers', and they were asked to comment on their chemistry as groupmates. Muzie stated, "There haven't been any feuds. However, we received so many offers to star in advertisement during our 'Itaewon Freedom' days, but Yoo Se Yoon hyung rejected every one. He said UV is about comedy, and he didn't want to use material for an ad."

Yoo Se Yoon explained, "The characters have a lot of bravado, and they act like they're musicians and worlds stars. I felt like if we appeared in ads, people won't be able to focus on that." Muzie then said, "If we were to calculate the money we lost, it'd be a billion Won ($878,975.00 USD). I thought this industry was like that. I thought that even if we rejected the offer, we would get other offers. I thought he was thinking of the next offer, but the offers really stopped coming."  

In other news, UV recently made a comeback with "Fine Dust" featuring g.o.d's Park Joon Hyung.