Eccentric pop star Bjork has rush released her new album after tracks were leaked online two months before its planned debut.

Last Wednesday (14Jan15), the It's Oh So Quiet hitmaker posted a handwritten note to her fans on social media, announcing the release of her first album in four years, Vulnicura, was set for March (15).

However, the nine-track record was leaked online over the weekend (ends18Jan15), and while Bjork did not confirm whether the hack played a part in her decision to release the project early, the singer announced on Tuesday (20Jan15) that Vulnicura would be rolling out worldwide on iTunes immediately.

Bjork also detailed the origins of the album on Facebook, writing, "i guess i found in my lap one year into writing it a complete heartbreak album. kinda surprised how thoroughly i had documented this in pretty much accurate emotional chronology... like 3 songs before a break up and three after. so the anthropologist in me sneaked in and i decided to share them as such.

"first i was worried it would be too self indulgent but then i felt it might make it even more universal. and hopefully the songs could be a help, a crutch to others and prove how biological this process is: the wound and the healing of the wound. psychologically and physically. it has a stubborn clock attached to it."

Bjork's decision to release her album earlier than expected comes a month after Madonna released six songs from her forthcoming Rebel Heart album, which is also due out in March (15), after hackers leaked various tracks online in December (14).