Duff and Joel Madden at a pre-Emmys party in 2005. “What’s better than going as @joelmadden for a Halloween dinner with ...

Matthew Koma revealed that he and wife Hilary Duff dressed up as the Madden brothers for Halloween.On his Instagram story, ...

Hilary Duff and her husband, Matthew Koma, stole the Halloween spotlight this year! Koma dressed up as the actress' ...

Hilary Duff and Matthew Koma got in on the Halloween fun by dressing up as her ex Joel Madden and his twin brother, Benji ...

Hilary Duff and husband Matthew Koma pull off Madden brothers costumes in dinner date with Nicole Richie and Joel Madden ...

Lizzie McGuire star Hilary Duff dated musician Joel Madden for two years until 2006, before going on to wed singer-songwriter ...

Video: Hilary Duff models a beige trench coat as she holds hands with her husband Matthew Koma during an afternoon outing in Beverly Hills Hilary Duff and her husband Matthew Koma grab brunch at ...

Hilary Duff and husband Matthew Koma dressed up as her ex Joel Madden and his brother Benji Madden for a Halloween dinner ...

Hilary Duff and Matthew Koma got in on the Halloween fun by dressing up as her ex Joel Madden and his twin brother, Benji Madden. “Going as @benjaminadden and @joelmadden to a Halloween dinner ...

Matthew Koma hilariously dressed up as wife Hilary Duff's ex Joel Madden for a Halloween double date with Joel and his wife ...

Instagram/Matthew Koma Despite the fact that Hilary and Joel dated over two decades ago, the couples have proven time and time again that they do indeed have a fantastic friendship. For Joel's ...