You can now listen to bits of all the songs on Katy Perry's 'Prism' if you want to

Katheryn Elizabeth Hudson has put a preview thing of her new album 'Prism' on the internet.

Basically you can hear 30 seconds of all the songs on the album by pressing play on the video below.

It's really that simple.

If you would like more but not all of the songs in question, you can listen to 90-second clips over on iTunes.