Gwen Stefani spent an active weekend in London hanging out with her little guys Kingston and Zuma. The trio tested out the swings at a park Saturday, and Gwen kicked around a soccer ball with Zuma yesterday. Gavin Rossdale's been on the road with his band Bush, so he's been unable to hang with his loved ones in the UK. He's heading to London soon, though. Following shows in San Antonio and Nashville later this week, Gavin and the guys will take their tour overseas to Germany in early November and on to London later in the month. Gwen may return to the States for work obligations herself since her Harajuku Mini line debuts at Target Nov. 13. The boys are the perfect size to model Gwen's designs, and Kingston's tested the plaid pants from her collection already!