Celebrity Guests Attend Tiffany Landmark Flagship Reopening.

Tiffany & Co. celebrated the opening of its renovated Fifth Avenue Landmark store with a star-studded event attended by A-list celebrities, billionaires, and LVMH executives. The event featured a tunnel on the sidewalk of 57th Street, a Petrossian caviar bar, and Givenchy uniforms for the staff. Tiffany ambassadors, including Anya Taylor-Joy and Hailey Bieber, wore designs from the new Bird on a Rock high jewelry collection. Katy Perry gave a surprise performance, singing "I Kissed a Girl" at the request of Bernard Arnault and his family.