Pop Star Taylor Swift's squad isn't going to let her birthday go unnoticed. Tay's famous pals took to social media to wish their BFF and pack leader a very happy 28th birthday on Wednesday with the sweetest messages. Karlie Kloss tweeted to the birthday girl, "Happy happy birthday @taylorswift13!" and her pal Selena Gomez also shared a cute video of the two from what looks like a casual girls' night in. Happy Birthday, Queen Taylor!