American actress Chloe Moretz will star in the Korean mock-marriage TV reality show "We Got Married" opposite Korean singer Eric Nam.

"We Got Married" is a popular TV program that matches celebrities -- enacting married couples -- in entertaining scenarios both private and public. Moretz is the first foreign celebrity to take part in the long-running show.

American actress Chloe Moretz (right) with Korean singer Eric Nam at a Korean shoe store in Seoul, Thursday. (OSEN)

Moretz is also due to make an appearance on Korean TV variety program "Saturday Night Live Korea" during her four-day visit to Seoul.

"Seoul, you never stop amazing us," wrote Moretz on her Instagram, Friday.

Moretz visited several top Seoul locations on Thursday with Nam for upcoming episodes of "We Got Married" -- including a Korean shoe store in Hapjeong, a Line Friends cartoon store in Garosu-gil and, of course, Seoul’s top shopping district Myeong-dong.

Chloe Moretz (right) with Eric Nam at the Line Friends flagship store in Garosu-gil, Seoul, Thursday. (Facebook)

The actress, 18, also wore a traditional Korean hanbok, specially tailored by a top hanbok designer, together with her older brother Trevor, during her visit.

Eric Nam is a Korean-American singer in Korea who has enjoyed moderate success since his first album in 2013.

Moretz is being called Hollywood's "younger sister" by local media.

Chloe Moretz (right) with Korean singer Eric Nam. (Instagram)

Chloe Moretz (right) tries on a specially handmade Korean traditional hanbok with her brother Trevor. (Instagram)

Chloe Moretz (right) at the Line Friends flagship store in Garosu-gil, Seoul, Thursday. (Facebook)

Chloe Moretz (right) at the Line Friends flagship store in Garosu-gil, Seoul, Thursday. (Facebook)

By Yoon Sarah (sarah356@heraldcorp.com)