Though he’s written 50-ish issues of Batman so far (including annuals and spinoffs), Tom King has yet to deliver a dedicated Joker story. The most we’ve seen was “The War of Jokes and Riddles,” but even that story took place in the past and positioned Joker as one villain among many. As the series nears the long-awaited wedding of Bruce Wayne and Selina Kyle, finally the Clown Prince of Crime is stepping out of the shadows and back into the spotlight. And unsurprisingly, he steals the show in issue #48.
Source: IGN.com Joker Steals the Show Before Batman's Wedding