Katy Perry has treated fans with a full stream of her upcoming album.

The pop songstress is due to release new record 'Prism' on Monday (October 21) in the UK and a day later in the US.

She has now made the entire collection available for streaming via her official website.

Some of the songs due to feature on the album include 'Unconditionally', 'International Smile' and 'By the Grace of God'.

Perry tweeted as she issued the tracks: "I'm really excited to share these songs with you all...I'm so proud of them. Will u let me know what u think & how they make u feel please?"

The album was greeted with a typically warm response from the singer's fans, with one Twitter user saying:

"PRISM IS ABOUT light finally coming to @katyperry & allowing her beautiful rainbow to become exposed! #iloveher."