Don't worry: It wouldn't be for a tribute episode (sorry, "Straight Up" fans!), but instead in a guest appearance not unlike the one that Olivia Newton-John had at the end of Season 1. The former American Idol judge would play a judge on Glee!
Writes the National Inquirer: "Insiders say Judge Wack-a-Doodle’s thrilled the Glee kids will be singing her hits — while hoofing to original terpischore conceived by Emmy-winning choreographer Abdul herself." Interesting. What do you think, Gleeks?