Henry Russell Walter, known professionally as Cirkut, is a Canadian music producer and songwriter based in Los Angeles, California. He has produced and written for international artists such as Britney Spears, Ke$ha, Rihanna, Katy Perry, Nicki Minaj, B.o.B, Lil Wayne and Taylor Swift. In 2012 he co-produced the title song to Katy Perry's film "Part Of Me".

Collaborations with Minaj

Cirkut has collaborated with Nicki Minaj in three songs of the same album (Pink Friday: Roman Reloaded):

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