Katy Perry has brought back a wave of Sims nostalgia after performing the Simlish version of her hit Last Friday Night live during a recent concert. The moment marks 13 years since the pop star first recorded the playful version for The Sims 3: Katy Perry’s Sweet Treats expansion in 2012.

Fans of The Sims will instantly recognize Simlish, the franchise’s signature made-up language spoken by its virtual characters. Over the years, several artists, including My Chemical Romance, Depeche Mode, Yoasobi, and Perry herself, have re-recorded popular songs entirely in Simlish for the games.

From 2012 Sweet Treats to 2025 Nostalgia

During one of her tour stops, Perry was handed a piece of paper by fans containing the Simlish lyrics to Last Friday Night. At first, she laughed and said, “Oh no, I shouldn’t do this,” before agreeing to sing the chorus. Despite joking about not being able to read the tiny text without her glasses, she nailed the performance, earning cheers from the crowd.

@iheartradioca @Katy Perry brings back her 2009 hit from Sims 3 at @Scotiabank Arena in Toronto! Last Friday Night (Simlish Version) #katyperry #toronto #lastfridaynight #thelifetimestour #sim ♬ original sound – iHeartRadio Canada

Some audience members unfamiliar with The Sims were likely confused by the sudden burst of “gibberish” lyrics, but for longtime players, it was a pure nostalgia hit. The original Simlish rendition was part of the 2012 Sweet Treats Stuff Pack, which featured Katy Perry-themed outfits, hairstyles, items, and locations, alongside her re-recorded songs.

The Sims Legacy Lives On

In the viral clip, Perry ended the impromptu performance by joking, “I’m sorry, you had to be there,” referencing the early 2010s era of her Sims collaboration. The moment quickly spread online, with fans praising her for remembering and embracing such a quirky part of her career.

With The Sims 4 still running strong and the plans for Sims 5 seemingly scrapped, Perry’s spontaneous throwback has sparked speculation among fans about whether she might collaborate with EA and Maxis again for a Sims 4 DLC.

Whether or not that happens, this brief performance was enough to remind the Sims community why Katy Perry remains one of the franchise’s most iconic collaborators.