She's doing her best to hold her head up high ...

After filing for divorce from husband Gavin Rossdale last week, Gwen Stefani and the fam went to church services in Los Angeles on Sunday. We couldn't help but notice that the rocker's left hand was ring free ... Buh-bye wedding ring!

Stefani, who was joined by her supportive parents Dennis and Patti, brought sons Kingston, Zuma and Apollo Rossdale yesterday.

For the mass, the 45-year-old donned a black and white heart-print blouse, jeans and high-heeled black sandals. We guess despite the break up, the singer is still wearing her heart on her sleeve!