Only the most outrageous star can steal the show at the Met Gala – and Rihanna did so with a stunning ensemble.Katy Perry followed the religious theme (Ian West/PA) Katy Perry also looked angelic as she followed the religious theme (Ian West/PA) Kim Kardashian-West in a Versace dress (Ian West/PA) Kim Kardashian-West’s figure-hugging Versace gold dress had crosses on the hips and torso (Ian West/PA) Blake Liveley in Versace (Ian West/PA) Blake Lively looked regal in Versace, with her gold and burgundy dress complete with a crown (Ian West/PA) Princess Beatrice attending her first Met Gala (Ian West/PA) Princess Beatrice provided genuine royalty at her first Met Gala (Ian West/PA) Rosie Huntingdon-Whiteley in Ralph Lauren (Ian West/PA) Rosie Huntington-Whiteley followed the religious theme with a halo and wore Ralph Lauren (Ian West/PA) Jennifer Lopez wearing Balmain (Ian West/PA) Jennifer Lopez wore a Balmain gown with blue, gold and red jewels in the shape of a cross (Ian West/PA) Ariana Grande wore Vera Wang (Ian West/PA) Ariana Grande’s Vera Wang dress was inspired by the Sistine Chapel (Ian West/PA) Amal Clooney wearing Richard Quinn (Ian West/PA Amal Clooney, who also co-chaired the event, wore a Richard Quinn strapless top (Ian West/PA Amal and George Clooney arriving at the gala (Ian West/PA) Amal and George Clooney turned heads when they arrived at the gala (Ian West/PA) Anna Wintour looking regal as ever (Ian West/PA) US Vogue editor Anna Wintour is the driving force of the event (Ian West/PA)Bee Shaffer looking splendid in red (Ian West/PA) Bee Shaffer looking splendid in red (Ian West/PA) Amal Clooney among the famous faces (Ian West/PA)Gary Oldman and Gisele Schmidt (Ian West/PA) Gary Oldman and Gisele Schmidt (Ian West/PA) Olivia Munn is a golden vision (Ian West/PA) Olivia Munn is a golden vision (Ian West/PA) Train of the night goes to Ariana Rockefeller (Ian West/PA) Train of the night goes to Ariana Rockefeller (Ian West/PA) More red, from Alek Wek (Ian West/PA) More red, from Alek Wek (Ian West/PA) Lili Reinhart (Ian West/PA) Lili Reinhart (Ian West/PA)