DJ Cheep Tuna is a DJ Rabbid who appears in Mario + Rabbids Sparks of Hope, located in Beacon Beach. He wears a hat that resembles a Cheep Cheep, as well as a red shirt and pants. He also wears black headphones with a blue wave pattern on them. His name is a pun on the aforementioned enemy, as well as the terms, "chiptune" and "cheap tuna". Being a DJ, Cheep Tuna always tries to get the audience pumped up and excited.

Source: https://www.mariowiki.com/DJ_Cheep_Tuna