Gwen Stefani Wearing Plaid Blazer | Pictures

Gwen Stefani stopped by a nail salon in LA on Saturday before making a fashionable appearance at the airport with son Kingston yesterday. Gwen wore a checkered blazer and Doc Martens to travel out of LAX with her oldest son. She has been busy promoting her new album, Push and Shove, with her band, No Doubt, ahead of its Sept. 25 release. Last week, she and the band debuted their title track on Ryan Seacrest's radio program and Gwen stopped by another radio show to continue doing press.