The cast of "Married With Children" (L-R: Ed O'Neill, David Faustino, Katey Sagal and Christina Applegate) reunite for FOX's 25TH ANNIVERSARY SPECIAL. Credit: Ray Mickshaw/FOX

The Bundys are back!

Fifteen years after Married With Children ended its 10-year run, the series' main stars -- Christina Applegate, 40, Ed O'Neill, 66, Katey Sagal, 58, and David Faustino, 38 -- reunited March 16 on behalf of Fox's 25th Anniversary Special. To celebrate, the pilot episode of Married With Children will air April 22 at 7 p.m. EST, followed by the 500th episode of The Simpsons.

Applegate recently revealed a fun fact about her final episodes of the series to Us Weekly: "During the last season of Married With Children, I wore a wig because I had dyed my hair purple and red. What a rebel."

FOX's Anniversary Special airs from 8:00-10:00 p.m. EST and will pay tribute to some of the network's most memorable shows, including Married With Children, In Living Color and That '70s Show.