Rhianna’s having a huge hit with Diamonds, but what you might not know is that the song was written by Australian singer Sia. Sia wrote the song with producer Benny Blanco and production team Stargate.

Sia performed a stripped down version of the song last week at the Norweigan-American Achievement Awards Ceremony.

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This is not the first time that Sia has written a tunes for another artist, she also has songs on the new records from both Christina Aguilera and Ke$ha and penned Ne-Yo’s massive hit Let Me Love You.

Check out Sia’s version of Diamonds below.