Taylor Swift performs onstage during "Taylor Swift | The Eras Tour" at Allianz Parque on November 24, 2023 in Sao Paulo, Brazil. The price of Tay-Tay's customized red-and-black designer piece by Roberto Cavalli is unknown, but a similar piece will cost you about $1,700. (Photo by Buda Mendes/TAS23/Getty Images for TAS Rights Management)