The 20-year-old American model and 31-year-old Scottish DJ teased Hadid's involvement with the project Monday on Instagram, with Harris writing, "How Deep Is Your Love video is coming sooooooon @gigighadid cc @disciples_ldn."
"How Deep is Your Love" features London production trio Disciples, and was released as a single earlier this month. Harris recently told KISS FM he recorded the song because he was eager to have a summer single following his latest record, Motion.
Hadid previously appeared in ex-boyfriend Cody Simpson's music video for "Flower," and in friend Taylor Swift's video for "Bad Blood." Harris and Swift have been dating since the spring, and were spotted with Hadid, Joe Jonas and Karlie Kloss in London in June.
Hadid is the eldest daughter of Mohamed Hadid and The Real Housewives of Beverly Hills star Yolanda Foster, and known for her modeling work with Guess, Maybelline and Seafolly. She was named the new face of Topshop this week.