BFFs on Broadway! The stars of the coming-of-age film The Sisterhood of the Traveling Pants reunited once again in NYC on Saturday, Oct. 18.
"Go America!" Tamblyn captioned the Instagram snapshot. "Supporting our girl in her play, Lips Together, Teeth Apart. #sisterhood." (Earlier this week, Lively made her first red carpet appearance in the Big Apple since announcing she's expecting a baby with husband Ryan Reynolds.)