Björk will be releasing all her nine studio albums on limited edition cassettes.

She took to Twitter today to make the announcement: "We have another surprise for you", and share a clip of the nine beautifully designed cassettes, each matching the original artwork.  

The cassettes will be released on April 24. They can be bought individually or in a set. Pre-orders are available here.

Just last week, she unveiled a line of '90s-styled t-shirts, continuing the theme of retro-inspired merchandise.

Stream her latest album, Utopia, below.