Kelsey Grammer, Kiefer Sutherland and More Join FOX's 25th Anniversary Special!

According to a report by Deadline.com, Kelsey Grammer, Calista Flockhart and Kiefer Sutherland join previously announced participant on FOX's 25th Anniversary Special Ryan Seacrest of American Idol, now set to host the event, which will air on April 22.

Read the original report here.

Previously announced participants include Married…With Children's Christina Applegate, cast members from Beverly Hills, 90210, The X-Files' Gillian Anderson, That '70s Show's Mila Kunis and Ashton Kutcher, Family Guy's Seth MacFarlane, and more.

FOX’s 25th Anniversary Special will air 8-10 pm (ET/PT) on Sunday, April 22.

Photo credit: Monica Simoes