Katy Perry brought together some of her closest friends in the music industry and her biggest fans all for a good cause. She hosted the We Can Survive charity concert last night at the Hollywood Bowl in LA and it was all about girl power, being strong and having an all-around good time!

Her pals Ellie Goulding, Tegan and Sara, Sara Bareilles, Kacey Musgraves and Bonnie McKee all participated in the show, which benefited victims of chance. Our favorite part? Their epic performance of “Roar!”

Related Article: Katy Perry Debuts Emotional New Song "By the Grace of God"

Last night’s show is only just a taste of what we can expect when Katy hits the road for her Prism tour in the very near future. No, she probably won’t be having the ah-mazing lineup like she did last night, but during her Q&A at the iHeartRadio Prism album release party, she did reveal that the tour will have a lot of “magical moments.” She added, “[I can tell you that this tour] I’ll be closer to the fans that I ever have before.” Like, physically? Emotionally?! How?!

No official announcement on the tour has been made yet but stay tuned! The album did just come out two days ago.

What did you think of the “Roar” performance?

And will you be checking out Katy on tour?