The Joker has established himself as one of the most iconic villains in not just DC, but across the entire comic books medium, a position where he will assuredly remain for decades to come–though if he saw what would become of his legacy, he would just give up now.
In the neo-tech future of Batman Beyond, there exists a gang that idolizes the Joker so much that they have taken it upon themselves to preserve his legacy with every anarchistic or otherwise criminal act they commit. At this point in the DC Universe, the Joker has long been dead, but the Jokerz gang are ensuring that he isn’t forgotten. Since Terry McGinnis became Neo-Gotham’s new Batman, the Jokerz haven’t really posed a major threat aside from being a consistent thorn in Terry’s side. Occasionally one of the Joker mooks will get a Bane upgrade, but that's about the extent of their threat. However, after another team of superheroes travel to Batman Beyond’s future, the Jokerz prove to be even less than a forgettable nuisance, but an embarrassment to everything the Joker once stood for.
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In Justice League vs The Legion of Super-Heroes #3 by Brian Michael Bendis and Scott Godlewski, the Justice League and the Legion of Super-Heroes have been thrown through the timestream. A faction of the Legion of Super-Heroes find themselves trapped in Batman Beyond’s time period where they immediately witness a member of Jokerz gang attempting to rob an innocent couple at gunpoint. The ‘Joker’ in question points a gun at his intended targets and in an effort to sound intimidating, says, “Ya ever dance with the something something in the something something?!” which is an absolutely butchered quote
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