Gwyneth Paltrow [1] gave Taylor Swift [2] a sweet shout-out on social media after she and her son, Moses, attended the star's concert in London over the weekend. Gwyneth posted a picture of the cute trio on Instagram, writing, "#taylorswift thanks for giving me and my little man our best date night ever. #hydepark." In the photo, Taylor has her arms around Gwyneth and nine-year-old Moses, who's flashing a big grin for the camera.

Gwyneth wasn't the only star at Taylor's London show, as she was joined on stage by some of her famous BFFs [3]. Kendall Jenner, Gigi Hadid, Karlie Kloss, Cara Delevingne, Martha Hunt, and Serena Williams turned the stage into a runway when Taylor performed "Style." Meanwhile, Taylor also linked up with Emma Watson [4] backstage, both stars looking more than a little excited to be hanging out. The good times kept coming for Taylor, too; in a picture posted early Monday morning, she cuddled up to boyfriend Calvin Harris [5] during a boat ride with Karlie Kloss and rumored couple Gigi Hadid and Joe Jonas [6].