The new Wii, Xbox 360 and PlayStation 3 music game will be a prominent part of the California Dreams UK Tour, which begins on October 12th and runs through to November, the same month that Just Dance 3 is launched.
Katy Perry fans will be able to have a go on the game at each tour location, while the Teenage Dream singer will be seen playing it in a video shown before each performance.
Ubisoft has also announced the launch of the Just Dance Your Way to Katy Perry competition, which challenges players to record themselves grooving to her song Firework on Just Dance, in order to win VIP tickets to her concerts and meet Katy in person.
The global superstar said: "I'm a fan of Just Dance 3 and I'm glad it brings people together to dance, just like I get to do on my tour."
Just Dance 3 will be the first multiplatform release in the multimillion-selling series and will feature a set list of more than 50 songs, including Katy Perry's California Gurls.