Fox appears throughout video, painting Kelly’s nails and boarding a private plane with the rapper.
The couple also share a kiss as the camera zooms in.
Megan previously starred in Kelly’s video for “Bloody Valentine”, released in May.
Loved-up music star Kelly recently told Howard Stern that he’d be “down” to marry Fox.
“I didn’t know what [love] was until me and her made eye contact,” Kelly, whose real name is Colson Baker, said. “That’s when I was like, ‘Whoa.’”
Stern then asked if it was love at first sight, to which MGK replied, “Yeah, for sure.”
The couple met on the set of their upcoming film “Midnight in the Switchgrass”. Fox split from her husband Brian Austin Green earlier this year after almost 10 years of marriage.