Mary McCormack may play a grandmother on her upcoming NBC series, Welcome to the Family, but she's still a party girl at heart. Just ask Chelsea Hander!
Appearing on Tuesday night's Chelsea Lately, the 44-year-old actress spilled on her late nights out with the 38-year-old funny lady while also breaking the news that latter is officially back in the dating pool.
"Mary and I go out together all the time," noted Handler.
"She's single now, too," declared McCormack.