Katy Perry sings 'Last Friday Night (T.G.I.F.)' in The Sims 3 - watch
The video takes a look at some of the new items and accessories that are offered in the upcoming update, before the popstar breaks out a special Simlish rendition of the hit single.
Releasing in June for the PC and Mac, The Sims 3: Katy Perry's Sweet Treats adds a variety of candy-themed items and accessories to the game.
New items include fountains made of candy, a waffle cone picnic table and a banana split sofa, which Perry describes as "incredible".
New fashions and hairstyles, meanwhile, are inspired by Perry's red carpet appearances, music videos and concert performances.
Praising the game's colourful appearance, the star admits that she's "thinking of getting some of the pieces made".
The Sims 3: Katy Perry's Sweet Treats also adds new venues and locations, such as Patty's Natural Baths and a candy playground.
Katy Perry joined forces with Electronic Arts earlier this year, and is working closely with the development team to produce new items and accessories.
She made her debut in The Sims 3: Showtime, which was released on the PC and Mac last month.
> Read our Sims 3: Showtime review
Picture gallery - view images from Katy Perry's Sweet Treats below: