Lili Reinhart Stuns Fans in Bold Sheer Look for BTS Swim Video

Lili Reinhart is turning heads after appearing in the music video for “SWIM,” the first single from BTS’s new album, ARIRANG. The video, released on March 20th, immediately caused a buzz online, with fans praising the connection between the actress and the K-pop group.

The video features Madelaine Petsch, known for her role in Riverdale, wearing beautiful and flowing outfits. A standout look is a delicate ivory satin gown with intricate lace detailing, which perfectly captures the romantic and dreamy feel of the song. She also wears a long, structured chocolate-brown coat that adds a modern and dramatic contrast to the soft, flowing dress as she moves through the video’s visually stunning sets. The overall styling aims for a timeless and elegant look, consistent with the high quality production values fans expect from BTS.

Lili Reinhart stars in BTS’ new music video for ‘SWIM.’

— Pop Base (@PopBase) March 20, 2026

The actress’s unexpected appearance is a major moment in her career, especially since she’s been carefully choosing her roles after finishing her popular TV show.

By joining the ARIRANG project, Reinhart has reached a huge global audience across many countries. Within the first day of its release, videos reacting to and analyzing her outfits in the SWIM music video have already been viewed millions of times.

Since March, Lili Reinhart has been dedicating much of her time to her production company, Small Victory Productions. She started the company to create stories with diverse characters and compelling narratives.

BTS is making waves with their new album, ARIRANG, their first release as a complete group since finishing their military service in 2025. The album blends traditional Korean sounds with modern synth-pop, and the song “SWIM” is being praised for its innovative style.

Starting in April, the group will kick off a huge world tour, with shows already planned for North America and Europe. Their choice of popular Western actress Madelaine Reinhart for their music video shows their continued role as global cultural icons.

This collaboration connects the worlds of music and television, demonstrating the strength of international creativity. With both Reinhart and BTS incredibly popular, the success of the “SWIM” video proves their lasting impact and artistic growth.

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2026-03-21 12:14