See That Coat Dress? Beyoncé Demonstrates Exactly How to Nail a Fall Wedding Guest Look

If I'm ever invited to a glamorous European wedding of royal caliber, I'll be wearing exactly what Beyoncé wore to celebrate Alexandre Arnault and Geraldine Guyot's nuptials in Venice, Italy, on Oct. 16. With styling help from KJ Moody, the singer chose a chic wool coat dress from Dolce & Gabbana to wear over an ocean-blue cowl-neck slip dress by Saint Mojavi ($350), which she paired with matching heels and a studded Marzook purse resembling a crystal ball. Beyoncé, who also debuted new curtain bangs, accessorized with over 30 carats of diamonds on her neck, as well as diamond earrings and a ring, all from Lorraine Schwartz.

JAY-Z complemented Beyoncé's gorgeous coat moment with a double-breasted suit of his own from the Phineas Cole collection at Paul Stuart, styled by June Ambrose. In addition to the power duo, Pharrell Williams, Kanye West, and Roger Federer were also in attendance at the luxe ceremony. See more photos of Beyoncé and JAY-Z's regal wedding guest looks ahead.