Madonna has introduced fans to her Veronica Electronica alter ego amid the release of a long-rumoured project.

On Thursday, the music icon announced that she would be releasing a collection of "rare and unreleased" remixes from her 1998 Ray of Light album.

Titled Veronica Electronica, the eight-track project will drop on 25 July.

While Madonna originally had the idea in 1998, she wasn't ready to release the album at the time.

"The project was ultimately sidelined by the original album's runaway success and the parade of hit singles that dominated the spotlight for more than a year," a press release reads. "Ray of Light went on to sell over 16 million copies worldwide and earned Madonna four Grammy Awards, including Best Pop Album."

Veronica Electronica features newly edited versions of club remixes by Peter Rauhofer, William Orbit, Sasha, BT, and Victor Calderone, along with the original demo of Gone, Gone, Gone - an unreleased recording produced by Madonna and Rick Nowels.

The Material Girl hitmaker has already released Skin (The Collaboration Remix Edit) on all major streaming platforms.

Following the news, Madonna took to her Instagram Stories to give further insight into her "other half".

"Making my Ray of Light album was a seminal moment in my life as an artist," the 66-year-old wrote. "I was going through a huge metamorphosis. I had given birth to my daughter Lola. I had found my spiritual path and I was ready to shed a new skin and take a road less traveled by. I ventured into electronic music with (record producer) William Orbit and I created an alter ego, taking one of my middle names - and Veronica Electronica was born. Meet my other half."

Madonna unveiled her last album, Madame X, in 2019.