Gwen Stefani and Gavin Rossdale brought their sons, Kingston and Zuma, to an Oktoberfest event in Lake Arrowhead, CA, on Saturday. Gwen flashed a peace sign for the cameras and was all smiles while hanging with her family. She also met up with her No Doubt bandmate Tony Kanal and his adorable daughter, Coco, for the outing. Gwen spent most of the day covered up in a leopard-print MinkPink sweater before taking it off and tying it around her waist, revealing what many are reporting is a growing baby bump. While Gwen and Gavin have yet to confirm that they are expecting their third child, they did recently ring in another milestone — Gwen's 44th birthday. The singer took to Twitter to post a childhood photo and tell fans that she "had a great day," adding, "Thank u for all your bday love."