X17 XCLUSIVE - BRITNEY'S LEGAL, Y'ALL! - NOW WITH VIDEO

Britney's on her way to getting her kids back by making sure all her bases are covered - first stop, the DMV! Queen B mugged for the camera today as she got her California driver's license just hours after handing off her kids to KFed's bodyguard as news came down that she had lost physical custody of her boys.

Brit was charged on September 21 with a hit-and-run and with driving without a license, so this is at least partial restitution.

We'll have more pix and video of the rest of Brit's day today, coming up later ...