Angelina Jolie: Playdate at Gwen Stefani's House!

Angelina Jolie carries her 3-year-old son Knox while leaving Gwen Stefani‘s house on Monday (September 26) in London, England.

The 36-year-old actress brought along her other kids, Shiloh, 5, Zahara, 6, and Knox‘s twin sis Vivienne for a playdate with Gwen‘s son Kingston!

PHOTOS: Check out the latest pics of Angelina Jolie

Over the weekend, Angelina enjoyed some one-on-one time with her oldest son, Maddox, 10, by taking him on a flying lesson in Hampshire.

10+ pictures inside of Angelina Jolie and her kids at Gwen Stefani‘s house…