He paired the shirt with a periwinkle suit featuring a chain stripe down the pant leg, plus a pair of white sneakers. Lowe was joined by his wife Sheryl Berkoff, who donned a black lacy blouse and slacks with a blazer and dragonfly brooch. Greta Gerwig, Natalie Portman, Tiffany Haddish and Jameela Jamil were also in attendance for the event.

The titillating phrase—which also graced the hats on guests’ seats—came courtesy of McCartney’s partnership with PETA.