Sia, the pop singer-songwriter who has crafted songs for many of today's biggest stars, has tapped Kanye West for her latest single, "Reaper." The song pairs the two as writers and producers, and will be featured on her forthcoming seventh album, This Is Acting.

The pair previously collaborated on "Wolves," the still-unreleased songs from West' nascent Swish that also features Vic Mensa. That song was premiered at the opening of the rapper's first fashion line for adidas, and was performed on Saturday Night Live, but has not yet been heard in studio quality.

Sia is far from a stranger to hip-hop, having previously collaborated with artists ranging from Eminem to Flo-Rida and Hilltop Hoods, a popular underground group from her native Australia. She has become known in recent years for her distinct live performances, which often feature the singer stationary and performative or interpretive dance from others.

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