'Glee': Gloria Estefan, Ricky Martin Join Roster of Notable Guest Stars (Photos)

"Glee's" Kristin Chenoweth and Matthew Morrison

Fox's Glee continues to be a magnet for A-list guest stars.

With Ricky Martin and Gloria Estefan in talks to appear in a January episode of the Fox hit, The Hollywood Reporter takes a look at some of the big names that have popped into the Tuesday night comedy.

From newsmakers (Katie Couric) to some of the funniest women (Carol Burnett, Kathy Griffin, Molly Shannon), Glee has also enlisted a laundry list of musically inclined actors (Neil Patrick Harris, John Stamos, Idina Menzel, Kristin Chenoweth).

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In addition to picking up Emmy nominations for comedy series, the Ryan Murphy-Brad Falchuk musical dramedy has also nabbed

Gwyneth Paltrow's Holly Holliday took home the Emmy for guest actress this year in a category in which she faced off against repeat nominee Chenoweth's for her role as the boozy April Rhodes and Dot Marie Jones' Coach Beiste.

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Last year, Harris took home the guest actor in a comedy statuette for his stint as Will Schuester's childhood nemesis Bryan Ryan in a category that also featured Mike O'Malley, who was nominated for his role as Burt Hummel, the world's greatest father.

Take a look at THR's gallery of Glee's notable guest stars. Who has been your favorite Glee guest?

Email: Lesley.Goldberg@thr.com; Twitter: @Snoodit

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