Porsche studio singer chris brown rihanna tattoo domestic abuse

Rihanna and Chris Brown hit the studio together Tuesday night in L.A. for a late night session and didn't leave until the wee hours of the night. Could they be collaborating?

A source tells X17online exclusively:

    "When Chris and Rihanna left the studio, they weren't even trying to hide. They used to keep their relationship under wraps, but now they're fully out in the open. And they're totally okay with that."

We're told the 24-year-old songstress was in the studio for more than five hours with her beau.

These two are definitely inseparable!