Chris Brown's babe Royalty Gets All Access At Hip-Hop Concert

Chris Brown got a special visitor Monday when he blew through Houston ... his daughter Royalty.

The 9-month-old was chaperoned by her mom, Nia Guzman and her half-sister. 

We're told that Royalty and crew were picked up by limo at a Houston hotel where they were staying and taken to Chris' tour bus, where he chilled with his kid.

Chris had a concert in Houston Monday night. Hard to imagine Royalty will be front and center, but anything's possible ... maybe she'll even meet Trey Songz.