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Manila Bulletin devider Entertainment devider Movies and TV devider K-pop group Billlie's Siyoon to debut as an actress in Hollywood film 'Perfect Girl'

K-pop group Billlie's Siyoon to debut as an actress in Hollywood film 'Perfect Girl'

Published Nov 6, 2025 01:15 pm
Billlie’s Siyoon (Mystic Story)
Billlie’s Siyoon (Mystic Story)


Siyoon, member of K-pop girl group Billlie, will be making her Hollywood debut and first film appearance in "Perfect Girl."

 "Perfect Girl" is a thriller film centered on the world of K-pop. Through the project, Siyoon will embark on a new journey as an actress in addition to her career as a singer.

The film follows the desires, anxieties, and mysterious incidents that unfold among trainees who are going through intense competition to become K-pop stars. 

The screenplay was written by Lynn Q. Yu, whose work was listed on Hollywood’s 2023 Black List. 

Billlie’s Siyoon (Mystic Story)
Billlie’s Siyoon (Mystic Story)

It is directed by Hong Wonki of Zanybros, who also directed "Zombie Hunter," "Urban Myths," and "The Cursed," and produced by Badlands and Thunder Roads Film.

Siyoon will be filming alongside Adeline Rudolph, who is also playing the role of Kitana in the upcoming "Mortal Kombat II" film set to release in 2026, as well as Arden Cho, known most recently for voicing Rumi, the main character in Netflix’s global hit animation "KPop Demon Hunters." 

Along with them, SIYOON will bring a detailed emotional expression and immersion she has demonstrated on stage as an artist and performer to her on-screen debut, by portraying the inner conflicts of a character caught between passion for music, anxiety, and unexpected events. 

Having previously collaborated with Zanybros on Billlie’s music videos for “GingaMingaYo (the strange world)” and “Patbingsu,” Siyoon's participation in the film raises anticipation to bring strong creative synergy once again with director Hong.

In April, Siyoon formed Billlie’s first sub-unit with her bandmate, Moon Sua, and released their debut title track “SNAP (feat. sokodomo),” which entered the top ranks of iTunes K-pop charts in 10 countries. 

Recently, the unit collaborated on “WoW (Way of Winning) (with Moon Sua X Siyoon)” in the second single album by their junior group, ARrC. 

Billlie recently appeared on Apple TV+’s "KPOPPED" and performed with Patti LaBelle and Megan Thee Stallion in September.

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