Naked Rihanna submerges herself in steamy hot tub as part of new teaser promo for forthcoming album ANTi

She is hardly the shy and retiring type.

So it's perhaps unsurprising that Rihanna shared a new online teaser promo for her album, ANTi, this week - which sees her naked in a bath tub.

The Barbados-born star, 27, uploaded the video onto her Instagram page on Friday, which quickly garnered millions of responses for its sexy-yet-artistic content.

Without her clothes, the chart-topper is lucky to have her modesty preserved by cloudy water which strategically rests above her cleavage.

With her sleek hair swept back, her only fashion item was a pair of silver earrings, which were reflected on the surface and added a touch of glamour.

Keeping it simple, she captioned the slick video with: 'Welcome to room 5 of the #ANTIdiaRy: ANTIdiaRy.com'.