Gwen Stefani was joined by a friend for a trip to the nail salon in LA on Friday. The L'Oréal spokesmodel was wearing her signature shade of red lipstick partnered with a rockin' side braid for her day about town. She was back from a relaxing family trip to Palm Springs and has already jumped back into the recording studio to hammer out the vocals on No Doubt's latest track, "Easy." Gavin's also been in the studio putting together Bush's fifth album, which is due out later this Spring. In a recent interview he talked about his music, Gwen, and whether his sons, Kingston and Zuma, are destined for a career in music, saying, "We’re not trying to force it on them. You leave all the avenues open—creative, physical, artistic—and let them go down the path they want. So it’s just about making sure the guitars and drum kits in the house are small enough. Let the noise begin!"