Who Is Matthew Koma, Hilary Duff's Fiancé?

He's a musician, dad, and all-around goofball.

Eyewear, Beauty, Fashion, Yellow, Fun, Suit, Human, Photography, Glasses, Event,
(Image credit: Leon Bennett)

In the cutest news I've heard all day that isn't Royal Baby-related, Hilary Duff just got engaged to her partner of nearly two and a half years, Matthew Koma (born Matthew Bair). The couple has kept a low-key profile, so you might initially be wondering who he is. Turns out, they're a really sweet, demonstrative, supportive couple—they have a little baby girl together!—and their relationship's just flat-out awesome.

If you've heard Zedd's "Clarity," you've heard Matthew's work. He's one of the writers on that song, as well as "Spectrum." He's worked with Alesso, Tiësto, and One Republic, among others.

He's also a singer in a band called Winnetka Bowling League and, if I may say so, quite a talented singer.

Hilary loooooves this aspect about him and will share Instagram Stories of his performances. (It's really cute, FYI.)

He and Hilary have a child together: Six-month-old Banks, who's cute as a button. Hilary made the pregnancy announcement in June 2018; she and Matthew had been together for a year and a half at that point, since January 2017. Both parents have visibly swooned over their daughter:

Matthew is also close with Hilary's older child, Luca, with ex Mike Comrie.

He likes to occasionally fake-troll Hilary on social media, from making "complaints" about the way she's raising Banks to random non sequiturs. He even recently in his Instagram Stories deliberately mis-tagged her as Hilary Swank (HA).

But, lest we be worried, he also is really, really supportive. Most recently, after she made a long and revealing post about deciding to stop breastfeeding, he called her "my hero." If you follow them both regularly on social media as I do, they're often open about how much they like each other, up to and including gentle teasing.

Aaaaand she totally said yes (again, they have a kid together so I'm not surprised, but yay for them all the same!!). 

May they have many happy years of snarky bliss together!

For more stories like this, including celebrity news, beauty and fashion advice, savvy political commentary, and fascinating features, sign up for the Marie Claire newsletter.


Katherine J. Igoe
Contributing Editor

Katherine’s a contributing syndications editor at Marie Claire who covers fashion, culture, and lifestyle. In her role, she writes stories that are syndicated by MSN and other outlets. She’s been a full-time freelancer for over a decade and has had roles with Cosmopolitan (where she covered lifestyle, culture, and fashion SEO content) and Bustle (where she was their movies and culture writer). She has bylines in New York TimesParentsInStyle, Refinery29, and elsewhere. Her work has also been syndicated by ELLEHarper’s BazaarSeventeenGood Housekeeping, and Women’s Health, among others. In addition to her stories reaching millions of readers, content she's written and edited has qualified for a Bell Ringer Award and received a Communicator Award. 

Katherine has a BA in English and art history from the University of Notre Dame and an MA in art business from the Sotheby's Institute of Art (with a focus on marketing/communications). She covers a wide breadth of topics: she's written about how to find the very best petite jeanshow sustainable travel has found its footing on Instagram, and what it's like to be a professional advice-giver in the modern world. Her personal essays have run the gamut from learning to dress as a queer woman to navigating food allergies as a mom. She also has deep knowledge of SEO/EATT, affiliate revenue, commerce, and social media; she regularly edits the work of other writers. She speaks at writing-related events and podcasts about freelancing and journalism, mentors students and other new writers, and consults on coursework. Currently, Katherine lives in Boston with her husband and two kids, and you can follow her on Instagram. If you're wondering about her last name, it’s “I go to dinner,” not “Her huge ego,” but she responds to both.