Credit: Nicki Minaj on Instagram Photo: Nicki Minaj's Crop-Top Jacket Revealing Her Breast

There was a surprise guest star an Instagram photo Nicki Minaj shared yesterday, September 24: Her bare right breast.

The revealing snapshot shows Nicki walking out an L.A. soundstage, having just filmed an appearance on The Ellen DeGeneres Show. She wears a crop top jacket — buttoned only at the top — and nothing underneath.

Upshot: Her boob is on full display, nipple and all.

Nicki is currently working on her next record, having finished her time judging American Idol.  "It was such a great experience. I would not trade it for the world," she tells E! Online of the hit reality show. "But my heart is in my music and I had to step back and go have different experiences so that I could write my third album … That's the most important thing in my life right now."

Yesterday is not the first time the Trinidadian singer has uploaded snapshots of her, ahem, "Starships" — or even the second!

In June she shared a photo of herself dressed (partially) in baroque-looking garb, with her hands over her bare breasts.

And just last month, she took a topless selfie, artfully covering her nipples with her hair.

Then there was that time both of her breasts popped out of her skimpy swimsuit during a music video shoot, and she couldn't care less.

Gotta love a chick with high body-image, but perhaps she shouldn't give away the whole farm. Leave 'em wanting more, eh, Nicki?

Source: E! Online