Justin Bieber is not the only star to reunite with Calvin Klein for its CK50 campaign. The brand also calls on singer Troye Sivan and rapper A$AP Rocky to celebrate its 50th anniversary as part of its latest campaign. The pair takes to New York City’s iconic subway for the advertisement. Sivan and Rocky model new clothing styles from Calvin Klein’s limited-edition CK50 collection. Casually sentimental, fashions include everything from the sweatshirt and denim jacket to bomber, adorned with CK50 logos.