That's a bit awkward! Rihanna and love rival Karrueche Tran show up at the same Grammys after-party

Rihanna and Karrueche Tran have one thing in common and his name is Chris Brown.
The 25-year-old Diamonds singer apparently skipped the Grammys ceremony to attend The Young Money Cash Money Records bash at Greystone Manor.
As luck would have it, Brown's current girlfriend,
25-year-old aspiring model Karrueche, was there too on Sunday making the most of things while the Don't Wake Me Up rapper's in rehab.

Love rivals: Rihanna attended a Grammys bash at Greystone Manor on Sunday and so did her rival Karrueche Tran who is dating Rihanna's ex Chris Brown

Current squeeze: Karrueche kept her distance from the Diamonds star but drew attention in a low-cut black outfit 

There was no fur flying at this party, however, for the ladies stayed at opposite ends of the West Hollywood venue.
Rihanna was seen grooving the music along with her on-again beau Drake, and looking sexy in a white mesh top with her long, waving dark hair cascading around her shoulders.
The Grammy-nominated songstress was dripping in jewellry from the pearl choker around her throat to the gold bracelets around her tattooed wrists, as well as rings on every finger.

On-again: Rihanna's off-and-on beau Drake was also at the Greystone Manor party where he took over DJ duties for a while

Super fun night: While Chris Brown is serving his 90-day rehab stint in Malibu, Karrueche kept herself occupied on Sunday at two parties

Karrueche Tran parties after the Grammys

Taking the plunge: The aspiring model also dropped by the Grammy Awards after-party at 1 Oak in West Hollywood on Sunday 

The slender, dark-haired Karrueche hung out at the El Cartel Tequila table where she no doubt attracted gazes her way.
Karrueche cut loose in a very low-cut black jumpsuit that featured a plunging split cleavage and cut-outs at the waist.
In spite of her come-hither appearance, the exotic brunette remains supportive of Brown after he was ordered to 90 days of rehab by a judge to deal with anger management issues stemming from his probation case in November.

Near run-in: Rihanna partied at 1 Oak nightclub on Saturday night

Dedicated: Karrueche visited Chris over New Year's and posted this picture on Twitter on January 2

Karrueche has, in fact, visited Chris at the Malibu treatment facility where he's at over Thanksgiving, Christmas and New Year's.
Just a year ago, Rihanna and Chris Brown were seen partying at the Supperclub in Los Angeles following the Grammys.
Their romantic history is a complicated one and Brown was ordered to perform 1,000 hours of community labour as part of his sentence for the beating his then-girlfriend Rihanna in 2009.
Despite their turbulent past and his run-ins with the law, the couple rekindled their romance in 2012.
Then in May 2013, Brown confirmed he and Rihanna has broken up again.

Turbulent past: Rihanna and Chris, pictured at the 2013 Grammys on February 10, rekindled their romance even despite their problematic past and his run-ins with the law only to break up again in May last year