We've known for a while, and yes, we've been holding out on you -- but Britney's back! She and Adnan returned to Brit's Beverly Hills home earlier today.

WTF?! Rosarito and back in 24 hours?! Why?

UPDATE - The two are on Ventura Blvd right now! Adnan left Britney's house in a gold-colored Mercedes ML with Brit crouched down in the passenger seat.

If you see 'em, email us! - x17@x17online.com
And don't forget to take pictures!!!

our own pix and video coming in a bit ...