Gwen Stefani: Twitter Photo Crazy!

Gwen Stefani keeps warm in a black and white coat while running some errands on Friday (January 21) in Los Angeles.

The 41-year-old singer also spent some time in the studio with her band No Doubt and posted a bunch of pics of the group on their Twitter page.

“Gwen is seriously twitter photo crazy! She can’t be stopped!” bandmate Tony Kanal tweeted.

Earlier in the week, Gwen hung out with Tony and his pregnant girlfriend Erin Lokitz at the recording studio.