Tina Fey didn't know she worked with 'Mean Girls' star on '30 Rock'

Tina Fey says that casting Gretchen Wieners in the new 'Mean Girls' movie musical was a tough task – and she ended up choosing an actress she'd worked with on '30 Rock' without realizing it.

Tina Fey applies herself to 'Admission,' family life

Tina Fey consulted her kids on new 'Mean Girls': 'Don't let those millennials overthink it!

30 Rock Was Born From The Ashes Of A Much Different Tina Fey Pitch

Tina Fey Asks For 30 Rock Episodes Featuring Blackface to Be Removed From All Platforms

Are there common themes to Tina Fey's shows? - Quora

I Genuinely Can't Watch The New Mean Girls The Same Way After Learning These 23 Behind-The-Scenes Facts

A date with Steve Carell and Tina Fey, Movies

30 Rock enters sixth and final season: we don't want to go to there, 30 Rock

The Tina Fey effect: how the original Mean Girl made comedy smarter