It was an evening to remember for the exes, with the rockstar’s wife Nicole Richie and the Disney alum’s husband Matthew Koma in attendance, as well as her kids Luca, 14, Banks, 7, Mae, 5, and Townes, 2.
Benji couldn’t help but beam over the reunion, writing on his Instagram Stories alongside a snap of them backstage, “Family night @ MSG. Congrats @hilaryduff.”
Although bringing Joel, 47—who shares kids Kate, 18, and Sparrow, 16, with the Simple Life alum—and Benji on stage was a major surprise for attendees, Hilary previously emphasized that there’s only love between them.