Child troll DJ-wannabe and niece of DJ Suki whom she idolizes. She first appeared in the "DJ's Got Talent" episode of animated kids' television series Trolls: The Beat Goes On! (November 2, 2018).
She appears semi-regularly in the series, and its sister television series, Trolls: TrollsTopia.
In the "CJ's Wooferbug" episode, aunt Suki struggles to catch a music-generating "wooferbug" as a present for CJ's birthday. No good troll DJ is without one.
CJ, like her aunt, is usually shown wearing headphones.