She's the boss! Rihanna goes topless and smokes a cigar as her entourage cover up in her voluminous couture gown in Diamond Ball photo shoot

As Rihanna hosted her inaugural Diamond Ball, behind the scenes she was conducting her own little photo shoot.

Wearing a stunning Zac Posen gown in midnight blue, the Grammy-winning singer, 26, showed off it's voluminous skirt that was so big some of her entourage could hide underneath it.

Of course it wouldn't be a Rihanna photo shoot without a little risque, and in one image the Bajan star poses topless with a smoking cigar.

Bad bish: Rihanna strategically covers her chest as she smokes a cigar while wearing a Zac Posen gown and surrounded by her entourage in behind-the-scenes photos from her inaugural Diamond Ball

Bad gal to Ball gal: RiRi conducts her Diamond Ball orchestra

Rihanna protected her modesty with the strategic angle of her arms, as she would no doubt be barred of Instagram again if she freed her nipples.

She captioned the picture: 'Thank you to this spectacular team for donating their time and hard work at the #DiamondBall'.

In another black and white image she can be seen leaning back seductively on one friend while another caresses her chest.

Stunning: The dress was from Zac Posen's Resort 2015 collection and is called the Midnight Blue Duchesse and Taffeta Strapless Ball Gown 

Peek-a-boo: A friend hides in the folds of her gown

Also, another colour image sees Rihanna looking over her exposed back while a friend peaks behind the folds of her dress.

The dress was from Zac Posen's Resort 2015 collection and is called the Midnight Blue Duchesse and Taffeta Strapless Ball Gown.

To complement the dress, Rihanna donned an elaborate gold necklace, while she wore her shiny blackish blue tresses in a sleek ponytail.

Caressed: Rihanna lies seductively on her best pals 

Big night: THe singer was hosted her inaugural Diamond Ball for The Clara Lionel Foundation

Pals: The singer posed with designer Zac Posen

With her lips shimmering in bright red siren lipstick, the star certainly looked the most glamorous for her event held for The Clara Lionel Foundation.

The Clara Lionel Foundation, a philanthropic organization, was founded in 2012 by the singer in honor of her grandparents, Clara and Lionel Braithwaite.

According to the foundation, its mission is to 'promote initiatives of health, education, arts and culture on a global scale'.

Fresh-faced: Rihanna posed a make-up free selfie on Wednesday