The friendship song is slated to appear on K-pop group's upcoming 13th mini album, "With YOU-th."
The stand-alone digital single is the group's first original released in Mandarin only.
The singer models a number of high-fashion shorts-with-black-socks looks in the ads for the Italian luxury house.
The song comes as the K-pop star begins his service in the South Korean military.
The dynamic duo turn an abandoned warehouse into a daytime rave in the new clip.
"Even though I can't be with you physically, please know that I am having a good time with you in my heart," the star wrote.
The singers join Jin, Suga and J-Hope in fulfilling their mandatory obligation to country.
The pair recently dropped the remix of JK's "Standing Next to You."
The new release from ATEEZ brought in nearly 50% of the vote.
After getting a shout-out in BTS' "Butter," Ush makes it official with his soulful addition to JK's solo hit.