April 18, 2026, SEOUL, KOREA – Top-tier boy groups BOYNEXTDOOR and RIIZE unleash OSTs for Kakao Entertainment’s hit production “Perfect Crown,” amplifying synergy with a heightened sense of romance.  

As part of its IP value chain strategy, Kakao Entertainment is overseeing the production and distribution of the OST. The highly anticipated lineup features its label artists – including WOODZ, KiiiKiii, hrtz.wav and RIIZE – alongside K-pop acts from diverse genres such as BOYNEXTDOOR.

‘No Doubt’

Following BIBI’s “My Pace” and KiiiKiii’s “Go On,” BOYNEXTDOOR released “No Doubt” on April 17 (KST) – the third OST of the drama. Built on a lyrical country pop sound created through modern guitar riffs and emotive chord progressions, “No Doubt” delivers bright energy through its acoustic texture and the members’ refreshing vocals. The dynamic instrumental arrangement intensifies as the track progresses, building synergy with their unique vocal tones.

Known for its trend-conscious yet unembellished style, BOYNEXTDOOR brings to the fore its genuine, boundary-pushing depiction of everyday emotions, as well as performances capturing the sentiment of youth. The group has emerged as a leading K-pop powerhouse, achieving three consecutive million-selling albums while showcasing remarkable digital performance. Ahead of its May comeback, BOYNEXTDOOR will whet fans’ appetite with the OST emphasizing its uplifting, free-spirited vibe.

‘Behind The Shine’

Picking up the baton, RIIZE is scheduled to put out “Behind The Shine” on April 18, marking its first K-drama OST since debut. “Behind The Shine” is a pop track with a dreamy vibe built over a gently flowing electric guitar. Highlighting the members’ emotive vocals over a restrained soundscape, the track illuminates emotions that were never fully conveyed. By echoing the drama’s narrative through hidden feelings and unspoken sincerity, it leaves a lingering resonance for listeners.

RIIZE is a K-pop front-runner that has rapidly expanded its global fandom with ever-evolving performances and a distinctive musical identity. It is the fastest K-pop boy group to perform at Tokyo Dome and Lollapalooza South America. Recently, the group had a world tour spanning 21 regions across the globe, drawing an audience of 420,000. Through its first-ever K-drama OST, RIIZE will showcase a more delicate and lyrical side, signaling an expansion of its musical spectrum.

Star-studded OST lineup

The “Perfect Crown” OST has attracted global attention thanks to its star-packed lineup and songs that add depth to the drama’s storytelling. BIBI’s “My Pace” and KiiiKiii’s “Go On,” which dropped last week, have successfully made in onto multiple streaming charts. They also set the overall tone for the drama and main characters, while also underscoring the subtle shifts in their relationship. Likewise, the voices of BOYNEXTDOOR and RIIZE are expected to play a vital role in further enriching the story by drawing out deeper emotions. Additional OSTs, each matching the drama’s evolving mood, will drop sequentially.

Set in 21st-century Korea under a constitutional monarchy, “Perfect Crown” follows a chaebol heiress with everything but status – Seong Huiju (IU) – who tries to take control of her future after crossing paths with a lonely prince with nothing but his title – Grand Prince Ian (Byeon Woo-seok.) Together bound by a contract marriage, they begin a class-defying romance to rewrite destiny. Premiering on April 10, “Perfect Crown” has enthralled global audiences with its romantic chemistry, stylish direction, and art that harmonizes tradition and modernity. It has secured No. 4 on Disney+’s Top TV Shows chart while entering the Top 10 in 44 countries.