Katy Perry just added a new feather to her Madge fan cap.
Katy Perry Twerks on Madonna at Rebel Heart Concert LA! (Be Yourselfie)
Katy Perry Joined Madonna On Stage On The Latest Stop Of Her 'Rebel Heart' Tour
Madonna drinks tequila, goes on rambling rant at Melbourne, Australia concert: report – New York Daily News
Like a Prayer (song) - Wikipedia
Madonna Opens Her Heart & Expresses Herself At Felliniesque L.A. Concert; Gives Shout-out To Doctor Who Saved Her – Review
Watch Madonna Spank Katy Perry
I'm being punished for not coming to rehearsal” 😳 😆 Madonna present
Madonna announces all-star music video
Songbook: How Madonna Became The Queen Of Pop & Reinvention, From Her 'Boy Toy' Era To The Celebration Tour
Watch Madonna Get Physical With Katy Perry on Stage
Katy Perry Joins The List Of Celebs Madonna Has Spanked Onstage During The Rebel Heart Tour
Madonna and Kylie Minogue Team Up for First-Ever Performance Together During Celebration Tour: 'A Long Time Coming
Songbook: How Madonna Became The Queen Of Pop & Reinvention, From Her 'Boy Toy' Era To The Celebration Tour