MAMAMOO's rapper Moon Byul watched Cheetah's performance of "Not Today," then said, "She's really a rapper from whom I have a lot to learn. She's so good to the point I can't dare say anything to her."
Cheetah replied, "Whenever I listened to MAMAMOO's music, I paid close attention to the rap. Moon Byul's rap goes really well with MAMAMOO's unique color. I think you have a color that is definitely much more unique to yourself than any other soloist or group rapper."
Hearing this, the DJs requested the two artists work together, so MAMAMOO said, "We would be honored as long as Cheetah gives her permission." Who'd love to hear that?