Katy Perry has unveiled a teaser clip for her new video 'Wide Awake'.

The track is the latest single to be released from the pop singer, with the song coming off her 'Teenage Dream: The Complete Confection' compilation album.

'Wide Awake' was written for Perry's forthcoming 'Part Of Me' 3D film and she has now uploaded a teaser clip for the song's video.

The video sees a girl looking through an old book, with images from Perry's recent music videos acting as each chapter. Perry is also seen eating a poisoned strawberry.

As previously reported, Katy Perry recently surprised her fans at a recent screening of her 3D film 'Part Of Me' by making a personal appearance and taking photos with them.