As the countdown continues to David Letterman's last night in the chair of the Late Show, celebrities are pulling out all the stops to show their appreciation. On Thursday night, it was Tina Fey sitting in the guest chair. And then it was Tina Fey standing and taking her dress off.
The 30 Rock star described to Letterman how hard it is for ladies to wear fancy dresses. She then vowed to never wear a dress for any other late night host, calling it her last dress ever. She then slid the dress off, revealing her "Bye Dave" leotard. (With #LastDressEver written on the butt.)