RIHANNA FEARS CHRIS IS OUT OF THIS WORLD!

KOOKY Chris Brown’s spacey social media posts about aliens have close pals concerned about the R&B crooner — including his once-battered ex Rihanna, sources spilled.

The “Go Crazy” singer, 31, is said to be obsessed with conspiracy theories and all things supernatural, and recently shared on Instagram, “If aliens exist, I sure hope our governments aren’t speaking on our behalf.

“Cosmic disclosure will help us get on the right path/frequency with the planet and break us free from this mental cage.”