A very drunk Kpop star who is in denial about his dancing abilities.
TOP is the rapper of South Korean pop group Big Bang. Choom means dance in Korean. ChoomTOP became popular after TOP got too drunk* and phoned in to UFO to tell everyone he finally memorized the dance routine.
*His sobriety was questionable.
I finally memorized it. This is choomTOP! ...Those laughing at my dancing are more sashimi dumplings.