Thought I'd bump this thread.
Gwen is joining The Voice USA as a coach. She and Pharrell Williams performed
Hollaback Girl recently too.
I've been listening to "Push & Shove" a lot in my car lately. I didn't really listen to it when it first came out but I like it now. It does sound a lot like Gwen's solo material in places. Apparently some of it was left over from her solo sessions which would explain it.
edit: mods please feel free to move this to the appreciation section.