Thanks NULL for the photo.

DJ Hallyboo is the main antagonist of Joey Perleoni's Mario Party DS Anti-Piracy ARG. He is designed by Morray01 and Owned by Joey. His nature is seemingly evil, but he sides with the authorities in the ARG and not the apparent "criminals" that pirated Mario Party DS. In the finale, he is played by TimVideo326 and voiced by Juno Songs who also did a lyrical cover of his theme, Host Hoedown. He is the right-hand man of the anonymous developer who worked on the antipiracy measures, and serves as his principal enforcer.

More facts here: https://house-of-horrorbrews.fandom.com/wiki/DJ_Hallyboo