Still, the moment felt like a landmark, a measure of cultural influence that few rappers had attained. That Rocky moved in arty, high-society circles wasn’t news: He’d done the fashion thing, gone to the Met Gala, collaborated with Raf Simons when Simons was at Dior. In 2018, A$AP Rocky staged a “performance installation” called Lab Rat on the seventh floor of venerated auction house Sotheby’s.