Katy Perry has continued to tease her forthcoming Birthday music video with a number of character posters.

The Dark Horse singer took to Twitter to post the images, which show each of her children's entertainer alter-egos, along with the caption: "FOR HIRE".

She portrays Goldie the dancer, Kriss the clown, MC Yosef Shulem, Ace the animal trainer and Princes Mandee in the posters.

Speaking of her Birthday music video on Jimmy Kimmel, K-Pez said: "I wish I could say it’s sexy, but it’s not. It’s me at my most insane."

Birthday is the fourth cut to be taken from Perry's hit album Prism, and follows the success of Roar, Unconditionally and Dark Horse.

The full promo is due to premiere today (April 24).