Gwen Stefani and her son Zuma must've gotten the two-for-one deal at the hair salon today because they both emerged from a local pet store with matching black-tip hairdos. Hot!

They also emerged with a new pet hamster -- as Gavin's mini-me, Kingston, carried a wire cage with the new family rodent.

Could the little rat be shacking up with Gwen, her boys and Blake Shelton? Well, according to the National Enquirer, Shelton, 39, and Stefani, 46, are close to getting hitched! Stefani's rep, however, calls BS, saying the rumors are "untrue."

We doubt Gwen would rush into another marriage before her current one is even legally over. Plus, the two Voice coaches seem to be having a jolly ol' time just doing what they're doing, dating and keeping it cool. We love the unlikely couple and can't wait to see what happens next. The single life does Gwen good!