Stefani, 47, wore her nostalgia tee with ripped jeans and black booties while her hair was pulled back.
The singer – who is reportedly trying to get pregnant with partner Blake Shelton, 41, via IVF treatments – looked thin and healthy.
She hit up Jamba Juice with partner Shelton and her sons Apollo and Zuma and she seemed in great spirits despite rupturing her eardrum recently.
Later on she was spotted boarding a private jet as she continues her busy schedule that included releasing a Christmas album recently.
She began dating fellow The Voice coach Shelton after divorcing Gavin Rossdale and they have been together for two years now.
Stefani and Shelton were recently photographed at a fertility doctor's office in Los Angeles as they try to have a child together.
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