Gwen Stefani took her older son, Kingston Rossdale, to his gymnastics and judo class in LA yesterday. The two kept things casual in t-shirts, sneakers, and hats while walking to the building. Gwen and Kingston have been spending lots of cute quality time together. The Stefani-Rossdales took in a tennis tournament last week and even visited an amusement park. Gwen has also been keeping busy in the recording studio with her band, No Doubt. The group recently celebrated their 25th anniversary and has been making progress on their next album, with Gwen sharing updates about their process on her Facebook page. Her husband Gavin Rossdale, meanwhile, is focusing on a fun new project. Gavin Rossdale was shirtless Sunday to shoot a scene for Sofia Coppola's The Bling Ring.