Conversation so far:
What is meant by the UKJ character?
created is a boy showing a middle finger and hiding a bottle of beer behind his back, wearing a blue baseball hat, a dirty white T-shirt, green Bermuda shorts.
What did the character represent?
he wanted to build up a bunch of other characters deriving from the other band's members or their friends.
Who designed the character?
UKJ Fan Artists or Mercer-Moish's fans such as Karaokeman .
What other characters were designed?
coverdesigns bootlegs to replace those which are disappointing (Goddamn Cool or As ugly as it gets for instance) or for old or new bootlegs without sleeves.

Question: Where did the character appear?
Self-contained rewrite: Where did the UKJ character appear?