ONF is gearing up for their comeback. 

Following the Broadcasting CCTV teaser for the title track "Ugly Dance" earlier, the boys finally revealed their music video teaser for the song. Meanwhile, ONF will be releasing their repackage album 'City of ONF' on the 28th. 

Check out ONF's teaser above, and stay tuned until the full release of 'City of ONF' on April 28 at 6 PM KST.