Rihanna Enjoys a Night Out at Greystone Manor After Celebrating Mother's Birthday!

Rihanna makes her way out of Greystone Manor nightclub after enjoying a night out on the town on Sunday night (April 6) in West Hollywood, Calif.

The day before, the 26-year-old entertainer took to her Facebook page to wish her mother Monica a happy birthday with a loving message.

“Queen, Goddess, Number One, Role Model, Angel….. A million words I can use to try to describe this courageous, fearless, selfless woman but at the end of the day no word makes her feel more special than MOM!!!,” RiRi wrote. “How lucky am I to have come here through you? You nurtured and taught and cultured me…and then some things couldn’t be taught, but were inevitable simply because I’m your daughter, this is why I say “how lucky…?”. Nothing could have prepared me for this world more than you did! Thank you for always saying the right things at perfect times, thank you for ACTUALLY ALWAYS knowing like you always say moms do, thank you for putting your needs aside for your 3 lil monsters and anybody else, Thank you for cutting my ass when I was getting outta line, Thank you for teaching me how to think like a nigga, Thank you for everything, Thank you for being you!!! Today is a special day…The day He sent you! #HappyBirthday #April5 #MOM.”

10+ pictures inside of Rihanna leaving Greystone Manor…