Lowe opted for a gray-blue double-breasted suit with sharp lapels and even sharper shoulders.
His baggy trousers featured a thick silver chain running down his leg.
The actor kept the look casual with a pair of spotless white tennis shoes.
Dave Benett/Getty Images
The titillating phrasewhich also graced the hats on guests seatscame courtesy of McCartneys partnership with PETA.
Pierre Suu
Barbara Palvin
Thomas Doherty
Xochitl Gomez