Fans celebrated the moment as “something I’ll never forget”
The dates include a stop at London’s O2 Academy Brixton
The two performed Cook's mix of Kesha's recent single release, a collaboration with T-Pain
The 11-minute trip took place on April 14
Perry embarked on the first all-female space mission in six decades yesterday (April 14)
Their reunion caused backlash following the producer's 10-year legal battle with Kesha after she sued him for emotional abuse and sexual assault in 2014
It will mark her third release since parting ways with RCA and Kemosabe
The social media platform went dark in the US on Saturday (January 18), leading many users to mourn its loss
"I’m so happy to have grown up with all of you"
"I love u thank you animals!!!”