Gwen Stefani  put her toned stomach on display when she visited her sons, Kingston and Zuma Rossdale, at the beach in Long Beach, CA, yesterday. She spent the day with her little ones while her husband, Gavin Rossdale , is on a Summer tour with his band, Bush. The group played in Illinois last night and will soon be jetting off to England where they are expected to play a concert in London's Hyde Park on Friday. Gavin did get in time with his boys and Gwen before he left for his tour as the whole gang got together for the Monsters University premiere  in Hollywood earlier this month.
Gwen Stefani  hit the beach with Kingston.
Gwen Stefani  protected herself from the sun with an umbrella.
Gwen Stefani  walked with her sons and a friend.