Standing side-by-side in the mirror selfie, The Weeknd rocked a blue velvet jacket, black T-shirt and a white surgical mask -- the latter most likely a preventative measure to protect his vocal cords from the air pollution in Japan -- while Hadid showed off her toned abs in a black bra top and navy camo-print trousers.
The "Starboy" singer also shared a few more snaps with his mask while sightseeing in Tokyo's trendy Harajuku district.
Earlier this year, Hadid gushed to ET about her supportive boyfriend, whom she began dating in September 2015.
"It's so awesome. I love him," the 19-year-old model said at the The Daily Front Row's Fashion Los Angeles Awards in March. "It's really nice that we can be here together and that he's supporting me. It feels great."
For more on the happy couple, watch the video below.