rihannahighlight.jpg If she's not partying it up, she's tearing it up on the mic!

Rihanna left her hotel and headed to a late night recording studio session in NYC last night, and the "Diamonds" singer looked rocker chic in leather pants, thigh high boots, and a red American Dream t-shirt. Fierce!

RiRi must be on cloud nine lately! After months of chasing after ex-boyfriend Chris Brown, her persistence finally paid off the other night while clubbing at Big Apple hotspot Griffin. The controversial lovebirds enjoyed a steamy make out session before disappearing into the bathroom for "nearly twenty minutes." Breezy was even spotted leaving the Gansevort Hotel, where Rihanna has been staying, the next afternoon.

Not that the bad boy rapper forgot he still has a girlfriend! After what appeared to be a sleepover with the Barbadian beauty, the "Turn Up the Music" singer headed to a different hotel to pick up current flame Karrueche Tran. We hope the model kicks him to the curb soon!

We think it's only a matter of time before Breezy and RiRi make their relationship official!