GLEE Season 4 to Feature GREASE-Themed Episode

According to TVGuide, co-creator and executive producer Ian Brennan has revealed that GLEE fans should expect a Grease-themed episode this season.

"Our Grease episode, which we just finished writing, I think, is certainly our strongest episode in a while. It just ended up really funny and sweet and weird," Brennan told TVGuide.

Read TVGuide's original list of GLEE season four spoilers here.

FOX's GLEE returned for season four last night, September 13, with an episode titled "The New Rachel," which drew 8.09 million viewers.

The fourth season of GLEE promises a host of surprises as well as guest appearances by Kate Hudson and Sarah Jessica Parker. The show will also welcome new cast members Dean Guyer, Jacob Artist, Melissa Benoist and Becca Tobin, and will see the debut appearance of GLEE PROJECT season 2 winner Blake Jenner.

GLEE is a musical comedy about a group of ambitious and talented kids who escape the harsh realities of high school by joining a glee club where they find strength, acceptance and ultimately their voice. This year, the senior class is riding high from their Nationals win and enjoying a bit of popularity, while the graduating class leaves the comforts of McKinley for the cruel streets of New York as they open a new chapter and continue chasing their dreams.

GLEE is produced by Ryan Murphy Television in association with 20th Century Fox Television. Ryan Murphy, Brad Falchuk and Ian Brennan are co-creators of the series. Murphy, Falchuk, Brennan and Dante di Loreto serve as executive producers.