wow!!! Rihanna flashes bum after going out for dinner in a BIKINI

IT MAY be autumn but that didn't stop Rihanna going out for dinner in a bikini.

SPLASHBIKINI BABE: Rihanna certainly put on a show for her fans

The singer, 27, is known for her raunchy clothes and even raunchier behaviour.

Rihanna headed to a restaurant in a green mesh dress with nothing but a black bikini underneath.

We've heard of beach to bar but this was just ridiculous.

She paired the dress with some platform trainers. Practical.

WENNBUM NOTE: RiRi clearly didn't feel the autumn weather

RiRi proved she certainly isn't shy when she bent over and almost flashed her bum.

She was in Brazil to celebrate the 30th anniversary of the Rock In Rio music festival.

She threw on the outfit to perform to fans at a restaurant.

The brunette caused a social media meltdown last year with her CFDA awards frock.

She wore a sheer floor-length gown that only had Swarovski crystals to protect her modesty.

The Bitch Better Have My Money singer recently caused a stir for reasons other than her attire (or lack thereof).

WENNSWAROVSKI: The star is known for her crazy outfits

She sparked controversy after posting an Instagram picture of the supposed rules for employees at her company.

It included the following advice on lunch breaks for her staff: "Fat people get 5 minutes for lunch, because that's all the time needed to drink a Slim Fast."

SPLASHMESH MESS: The singer isn't afraid to show a bit of skinSource: UK Daily Sta