TVLine Items: Sarandon Ready to Rock, Britney on GMA, and Other TV News to Know

30 Rock can add another notch to its “Awesome Guest Stars” list.

Susan Sarandon will pop up on the March 17 episode of the NBC hit, Vulture reports. Details on the episode are scarce, but it is called “Queen of Jordan” so it ‘s bound to be awesome.

What else is happening in TV today? Well…

• Best. Release party. Ever. Britney Spears revealed via YouTube (as picked up by EW.com) that she’ll be performing on Good Morning America Tuesday, March 29, the same day her new album Femme Fatale drops.

• Chelsea Handler will appear in her new NBC pilot (based on the autobiography Are You There, Vodka? It’s Me, Chelsea), E! News confirms. Laura Prepon (That 70’s Show) has already been cast as a youthful version of the comedienne.

• OWN has renewed full-fledged hit Our America with Lisa Ling for a six-episode second season, after airing just two episodes of Season 1.

• Simon Cowell told old Idol pal Ryan Seacrest on his radio show Friday morning that the British import X Factor hasn’t booked a host just yet, but he or she will be from America.

• After just one season, TBS has pulled the plug on Glory Daze, Deadline confirms. Tiny silver lining? Star Chris D’Elia booked NBC’s Whitney Cummings pilot the same day.

While TVLine Items have you talking today?