The JLA also guest-appeared in this month's 300th anniversary issue of World's Finest, along with the Outsiders and the Teen Titans!
The story, "A Tale of Two Worlds! or: Planets of Peril!" is by David Anthony Kraft, Mike W. Barr, Ross Andru, Mark Texiera, and Sal Almendola, with the Titans sequences by Marv Wolfman and George Perez! Wow!