Last night’s launch event at the rooftop penthouse of the Standard East Village brought together art lovers, Fashion Week diehards and hip-hop heads to celebrate a new collaboration between Daniel Arsham and Pharrell. Both of these gentlemen have been omnipresent as of late: Arsham with exhibitions around the world (including one opening in November at Galerie Perrotin in Hong Kong) and design commissions with Snarkitecture; Pharrell blaring out of every stereo in the company of Daft Punk and Robin Thicke.

For this project, Arsham created a cast sculpture of Pharrell’s 1987 Casio keyboard and drum machine using volcanic ash, crystal, carbon dust and rusted steel. The resulting pieces—displayed in a vitrine or, in a side room, available to be held, provided one wore white gloves—resemble pristinely carved slabs of chocolate that have been ravaged by mice. (If you’re wondering, they’re also heavy as hell.)

“In all of Arsham’s work, he’s interested in decay and decomposition; his materials are very geological, they track the passage of time," Emily Nathan, an editor at ARTnews, told me last night. "I talked to him about these particular sculptures, and he mentioned his interest in giving a concrete form and shape to something as elusive and abstract as music."

Guests—including Brian Donnelly (KAWS), Terry Richardson, Julia Chiang, Jose Parla and Nicole Nadeau—admired the crossover craftsmanship while sipping Corzo tequila on the rocks. The only thing missing from the social scene was one of Snarkitecture’s all-black ping-pong tables.

For a taste of last night’s scene, check out our voyeur video from the event. Can you spot Pharrell?