Gwen Stefani: 'Push & Shove' Bonus Tracks!

Gwen Stefani dons a bold “Why Am I Such A Little B–ch?” t-shirt on Friday (August 24) in Hollywood.

Earlier in the week, the 42-year-old rocker was spotted shopping with her cute son Zuma, who was dressed as Batman’s sidekick Robin.

PHOTOS: Check out the latest pics of Gwen Stefani

On Friday, Gwen‘s band No Doubt tweeted about bonus tracks for their new upcoming album, out September 25. They wrote, “Pre-order #PushAndShove now with 8 additional bonus tracks from @Target.”

Can’t wait to hear the new album!