12 April 2012, 17:41
Watch the star performing a special version of the track on Capital.
Katy Perry has performed a special version of her hit 'Last Friday Night (T.G.I.F)' in Simlish.
The 'Teenage Dreams' star's rendition of the track arrives ahead of her Sims collaboration, The Sims 3: Katy Perry's Sweet Treats.
Released in June, the special bolt-on allows users to take advantage of special Katy Perry-inspired features, including a banana split sofa and waffle picnic table.
"There's so many different outfits, all based around candy. The banana split sundae coach is incredible," Katy said, adding that she enjoyed changing her hair colour when she plays the game.
Katy first teamed up with The Sims for The Sims 3: Showtime, which is out now.
Watch Katy Perry performing 'Last Friday Night (T.G.I.F)' in Simlish below: