Whoops?

Lady Gaga posted on Friday, July 18 an Instagram photo that shows one of her breasts peeking out of her low-cut white outfit. She is sitting inside a plane and smiling, slightly.

"FASHUN: Vintage Mugler on the plane Listening to Miles Davis My favorite is Flamenco Sketches," she said.

The picture was also posted on the 28-year-old pop star's Facebook page and deleted later in the day. The singer also sported a cropped black wig, ivory gloves and peep-toe heels with thick straps, white sunglasses and a thick, golden choker, as seen in another photo, which shows her leading her French Bulldog, Asia, on a leash by the airstairs of what appears to be a private jet.

"On my way to The Yellowstone Club in Montana to see @jeffkoonsstudio for a talk about Art," she said.