Taylor Swift basically knows every famous person ever. She's literally the Kevin Bacon of our times. (Sorry, Kevin Bacon.)

Taylor's made a conscious effort to meet and support famous young women in particular -- like Selena Gomez, Lorde, Karlie Kloss, the ladies of Haim, and Fifth Harmony's Camila Cabello -- so it's no surprise that she celebrated International Women's Day by praising the celebrity sisterhood she's cultivated.

The "Style" singer posted a photo of herself with Selena, Ellie Goulding, and Este and Alana Haim on Instagram Sunday (Mar. 8).

"We are at our best when we cheer each other on and build each other up," Taylor captioned the picture. "Happy International Women's Day."

The photo was taken at a Saturday night hangout shared between all five of the women, which was "bloody CHILL" according to Ellie. Check out more pics below.