Pop sensation Rihanna has reportedly hired a female private investigator to make periodic drop-ins and ensure that boyfriend Chris Brown is behaving himself like a good boy when he embarks on a tour of Europe later this month.

Rihanna secured an additional set of eyes and ears to follow Chris on the road ”just to make sure he’s not fooling around,” a chatty insider blabbed to the Chicago Sun-Times.

(Glad to know that you’re in a relationship that is built on trust, Rihanna.)

In addition to the sexy P.I., Rihanna is planning on making several ‘’surprise” visits to see her heartthrob hubby while he tours, ”and she has even hired an additional ‘mole’ who will be part of the tour full time … a member of Chris’ team, but someone he doesn’t realize is also spying on him for Rihanna.”