Us Weekly revealed last week that the musicians hit it off when they collaborated on Duff's 2015 album, Breathe In. Breathe Out.
"They had great chemistry in the studio," a source close to the Lizzie McGuire alum told Us. "Hilary thinks Matt is very talented and cute."
Koma and Duff also made their relationship Instagram official.
The musician shared a three photo collage of the pair featuring intimate polaroids, with the caption: "date night".
Duff split from personal trainer Jason Walsh in November 2016.
You may also like...