When an artist is performing at the Grammys—as Adele and Beyonce did, to much anticipation, on Sunday—there is all kinds of pressure. But when you’re a guest, even a guest like Rihanna, it’s a different night. “She could be a bit more relaxed because she wasn’t performing—not overthinking or overdoing,” says Rihanna’s longtime hairstylist Yusef Williams. “We did decide prior to color her hair! Not for the Grammys per se, but for life.” Rihanna showed up to the carpet in a 2 piece black halter top paired with a black layered hoop skirt.