http://nippop.com/artist/artist_id-2...e-ketsumeishi/
One day I was praising Ayu to my friend again when he said oh y'know Ayu and Ketsumeishi did a song together. I was like uhhhh no they didn't...then he sent me an mp3 of LIMIT which was labeled saying that it was Ketsumeishi + Ayu. So that got me thinking, maybe these DOHZI-T and DJ BASS guys are now part of Ketsumeishi. I did a search and I found this tiny mention.