Rihanna exposed her bra under a sheer black vest top as she made her way to Giorgio Baldi in Santa Monica on Saturday

She's known for her fearless sense of style and willingness to the push the envelope.

And Rihanna still managed to turn a casual dinner at her favourite restaurant into another daring fashion moment.

The 26-year-old exposed her bra under a sheer black vest top as she made her way once again to Giorgio Baldi in Santa Monica on Saturday.

Revealing: Rihanna exposed her bra under a sheer black vest top as she made her way to Giorgio Baldi in Santa Monica on Saturday

Rihanna paired her revealing look with loose-fitting black pants and tan shoes with chunky red soles.

She had a wool coat draped over her shoulders and carried a small black clutch in her hands.

The talented singer had her black locks up in a high ponytail with little makeup on her amazing skin and a pair of giant white framed sunglasses to hide the glare from the photographers' cameras.

Undercover: The talented singer had her black locks up in a high ponytail with little makeup on her amazing skin and a pair of giant white framed sunglasses to hide the glare from the photographers' cameras

Chilly: The 26-year-old had a wool coat draped over her shoulders and carried a small black clutch in her hands.

The Diamonds singer made sure to hit up the Italian restaurant after returning from Miami on Thursday.

Despite her A-list status, Rihanna had trouble getting passed airport security and was asked to go through the scanner five times.

She arrived for the flight dripping in bling and struggled somewhat as she had to remove articles of jewelry and clothing piece-by-piece until the metal detector stopped beeping.

Shine bright like a Diamond: A slick of lip gloss made for a shimmering effect

Comfort: Rihanna paired her revealing look with loose-fitting black pants and a chunky tan shoes with red soles.

As she was forced to take off more and more of her belongings, the singer seemed to become increasingly upset until she finally tossed one of her black leather boots to the ground.

One thing that didn't  prevent her from getting through security was a bra as she wore a clingy - albeit hole-ridden - black dress without the support of the undergarment for the day of travel.

The Stay hitmaker eventually made it beyond the check point and arrived safely in Los Angeles.

Bold: Her coat featured interesting patches sewn into the fabric