SUMMER FUN: Rihanna Serves BAWDY In A Yellow Bikini Before Partying At Crop Over In Barbados + Rob Riley Gets Down & Dirty + Adrienne Bailon Unwinds In The Hamptons

Rihanna is back in Barbados! The Pop princess laid out by the pool in a itty bitty yellow bikini before partying at Crop Over. "Hit The Floor" star Rob Riley was also in the mix. Meanwhile, Adrienne Bailon is kicking off a relaxing weekend in the Hamptons. Peep the pics inside…..

Jetting from Beverly Hills, Rihanna has returned "heauxm" in Barbados to party with the locals to partake in the Crop Over festivities. But, before she hit the party scene, chick served up a hot photoshoot by the pool in an itty bitty yellow bikini yesterday.

Shot by her bestie Melissa Forde, Rih flossed her tight and toned bod in an array of summer fun flicks by the pool.

The Island Gal put on her best model behavior as she flaunted her “ass”ets while rocking a Jacquie Aiche body chain and jewelry.

Coming from behind the camera, Melissa served up bikini fab in a hot two-piece with her bestie. Bikini baring besties at its finest.

After lounging by the pool....

The "BBHMM" singer made her way to Crop Over to partake in the annual festival in her beloved hometown. She linked up with "EXTRA" correspondent A.J. Calloway, who is also in town for the festival.

RiRi’s other bestie Leandra is also in the mix for the summer fun with her girls.

While getting drenched in paint, Rih made sure to snap a few "us-ies" with a few fans:

And her friends joined in on the fun:

Check out the madness below:

Looks like Rih is gearing up for one hell of a weekend.

And look who else is there....

"Hit the Floor" star Rob Riley, who started his own Carnival production company, was also in the mix to party it up with locals. Looks like he had loads of fun.

Meanwhile....

Instead of hitting the party scene this weekend, “The Real” co-host Adrienne Bailon is looking to get in some R&R in the Hamptons.

Chick jetted to Ruschmeyers in Montauk, NY for a relaxing weekend to unwind from her hectic schedule. And it appears she's solo, sans her fiance Lenny Santigao. He was busy snapping flicks at Kevin Hart's "What Now" tour stop in Chi-town last night.