The singer joined the website earlier this month, posting a selfie and the caption: "Cheers motherf**kers! I'm on instagram." The scantily clad star posed for the camera while drinking a cocktail.
She's since uploaded images of her cleavage ("Addicted to sweat !!!!!" she writes) and an image of her butt with the caption: "Working on the edit of the live concert!"
The 54-year-old star received a warning from Instagram that she must follow the rules or her account will be disabled. She posted the notice for fans to read:
But there's some good news for the pop star. She is the top money maker in music over the last 12 months. Madonna earned a staggering $34.58 million, largely due to her very successful "MDNA" world tour.