Madonna has shared a string of snaps of herself completely topless in what could possibly be her raciest Instagram post to date.

The Material Girl singer stunned fans as she flaunted her assets to the camera, leaving little to the imagination. The 63-year-old is no stranger to posting racy pictures, but this time she hid her modesty just under two emojis, writes The Mirror.

The two saucy snaps met the social media site's guidelines as Madonna covered her nipples with the emojis. Using the candy and money emojis, Madonna captioned the photos: "Went from candy to money." On her bottom half, Madonna wore a gold corset along with black fishnet tights.

She posed in what looked like a dressing room as she styled her hair straight with plaits and went for a full glam makeup look. It's thought that Madonna's racy uploads are all part of the promotion for the 30th anniversary of her fifth studio album, Erotica, which was originally released back on October 20, 1992.

At the time, the star released her album at the same time as her first book Sex. It was a coffee table book containing explicit photographs featuring the singer by the Steven Meisel Studio and Fabien Baron.

Madonna left little to the imagination
Madonna left little to the imagination 

However, she received backlash from critics and anti-porn groups at the time who said the images were pornography. The album incorporates Madonna's alter ego Mistress Dita, who is inspired by German film actress Dita Parlo, who achieved success with a string of films in the 1930s.

Some songs have a more confessional tone which were influenced by the loss of two of Madonna's close friends to AIDS. The album, which was recorded in New York City with Shep Pettibone and André Betts, received praise at the time.

She often shares racy snaps
She often shares racy snaps 

Despite it being less successful than her previous music, Erotica did peak at number two on the US Billboard 200. Erotica was certified double-platinum by the Recording Industry Association of America (RIAA), and went on to sell more than six million copies worldwide.

Madonna headed out on The Girlie Show World Tour that saw her visit cities across North America, Europe, Latin America, Asia, and Australia in 1993 to promote the album. As part of the Erotica celebration Madonna released a three-tracks vinyl picture disc that at the time was considered too hot for retail when it was first pressed 30 years ago, according to Billboard.

Madonna's career has spanned decades
Madonna's career has spanned decades 

It famously has a 'toe sucking' photo on the front and the 'Madonna Erotica' logo on the back, with a two-sided backer card and transparent PVC sleeve. Six singles were released from the album, which included the title track and Deeper And Deeper.

To promote the 30th anniversary of the album, Madonna has recently been sharing videos and photos on her Instagram page.

Get the latest celebrity gossip and telly news sent straight to your inbox. Sign up to our weekly Showbiz newsletterhere.