Billy Corgan and Chloe Mendel Corgan get ready for the New York City Ballet’s fall fashion gala

Billy Corgan and Chloe Mendel Corgan rarely dress in black tie for a night out, but Wednesday’s Fall Fashion Gala at the New York City Ballet was a special occasion: Mendel Corgan’s father, Gilles Mendel, was the designer of the this year’s gala costumes.

The couple, who are currently expecting their third child, got ready in their House of Gilles look in a suite at The Mark Hotel.

“Billy has been on tour for most of this year, so we’re really looking forward to a night out, just the two of us, especially with our third child on the way,” Mendel Corgan said of her husband, who fronts The Smashing Pumpkins . “Tonight is extra special because it is a celebration of my father, Gilles, who designed the costumes for the world premiere of the New York City Ballet Fashion Gala, chaired by Sarah Jessica Parker. Billy often misses important family moments, so it means a lot to have him here with me and the family. And of course we are both in the haute couture of House of Gilles.”

Mendel Corgan’s look, a black dress with an empire waist, was chosen to accommodate her pregnancy, while Corgan took the opportunity to break out his custom-made tuxedo from his wedding, which his father-in-law had made for him.

“Billy is wearing a beautiful tuxedo with embroidery on the inside of the suit – a family illustration that he created himself,” said Mendel Corgan. “I’m wearing a pleated silk organza dress with hand-embroidered flowers that my father designed in honor of my pregnant belly. And to top it all off, I’m wearing vintage Fred Leighton jewelry!”

The evening called on them both to support Gilles, but also to celebrate the arts.

“We have always been drawn to the visual arts, and ballet in particular is such a beautiful combination of artistry and emotion. The choreography, the costumes, the stories: it all resonates with us,” says Mendel Corgan. “As a musician, Billy is particularly fascinated by the way the music elevates the dancers and the choreography, drawing from different styles of music that create different moods that really transmit emotions through the body. For me as a designer it’s about the elegance of the costumes; the way they combine beauty with the need for movement and help bring the story to life. Together these worlds create something magical, and it was incredible to see my father working with choreographer Caili Quan to push the boundaries of traditional costume design. When artists work together in this way, real magic happens.”