Gwen Stefani: Songwriting with No Doubt!

Gwen Stefani walks hand in hand with her cute son Zuma while heading to the doctor's office for an appointment on Friday (April 12) in Beverly Hills, Calif. "morning after songwriting for 10 hours straight - hummmm interesting brain numbness going on. gx," the 43-year-old No Doubt frontwoman tweeted the day after. PHOTOS: Check out