After recently teasing part of the cover for her new single, 'Last Friday Night (TGIF)', Katy Perry has released the full artwork. 

The full cover shows the 'California Gurls' singer sat in a typical teenager's bedroom with train-track braces, garish 80's makeup and fabulously crimped hair. No further information about the single or its release has been confirmed as of yet. 

She is currently on tour in Japan and has been sharing her very colourful adventure with fans on Twitter, showing them photos of her in an 'Alice In Wonderland' themed restaurant and having tea surrounded by cats. 

Watch her cover Rebecca Black's 'Friday' here: