Katy Perry Wears A Bikini For ALS Ice Bucket Challenge… And Challenges Madonna

Bold move, Katy.

Nearly every woman in pop royalty has now completed the ALS Ice Bucket Challenge, from Britney Spears and Miley Cyrus, to Lady Gaga and Taylor Swift. And on Tuesday (August 19) Katy Perry joined in by throwing two giant buckets over her head… and didn’t even flinch.

In the (rather loud) Instagram video, Perry stands aboard a pirate ship in a black string bikini, while two shirtless beaus assist in the pouring of the buckets. Turn your speakers down (trust me) and watch it now:

The “This Is How We Do” singer used her nomination powers to call out one very special someone to take on the challenge: The Queen of Pop, herself, Madonna.

Will Madge answer the call? She has 24 hours to show face.