Lena Dunham and Gigi Hadid popped over for a little gathering at gal pal Taylor Swift's place. Taylor was spotted heading home earlier that day with new beau Calvin Harris so perhaps this was an opportunity for her friends to get to know him better. Lena kept it simple when she arrived in a white tank and some jeans adding a little black jacket and some wooden sole boots. She left with long-term boyfriend Jack Antonoff and stole his hat, wearing it backwards to add some swagger to her look. Karlie Kloss also sauntered into the party; no heels were need for this model. She showed off her long lean frame in a crop top and split side maxi skirt.