Jakarta, August 2, 2025 – Before the grand concert even began, the atmosphere at KOSTCON 2025 was already heating up during the press conference and meet & greet session. Seven top-tier Korean vocalists—known for their unforgettable K-drama OSTs—showed up not just to perform, but also to reveal sides of themselves fans rarely get to see.
1. Lee Mu Jin: Shy Start, But Instantly Stirred Emotions
The first artist to walk into the room was Lee Mu Jin, greeted by cheers and waving lightsticks. Though visibly shy at first, his smile instantly melted hearts. Known for his hit OST “Sweet” from Business Proposal, Lee Mu Jin shared the heartfelt meaning behind the song.“Sweet is about two people who were strangers at first, but slowly started walking through life together—supporting one another and eventually falling in love,” he said warmly, triggering loud cheers from the fans.
With his emotional voice and sincere presence, Lee Mu Jin immediately drew the audience into the emotional world of his song.
2. Soyou: Effortless Charm and a Surprise Throwback!
If Lee Mu Jin brought warmth, Soyou brought the heat. Dressed casually but confidently, she surprised everyone by singing a few lines from SISTAR’s iconic hits “Shake It” and “Touch My Body”, instantly sending fans into a frenzy.“I’m so happy to be here in Jakarta again. You guys are amazing!” she said with a bright laugh.
Her playful energy and easygoing personality turned the conference room into a mini concert even before the actual show started.
3. Heize: The Ballad Queen with a Bubbly Soul
Most fans know Heize as the queen of heart-wrenching ballads like “Round and Round” from Goblin. But in person? She’s absolutely bubbly and full of life.
She shared a hilarious and personal moment about how she wrote the song “You Are the One” based on a drama kiss scene.“I imagined myself in that kissing scene with my boyfriend,” she giggled. “So I made the song sweeter, a bit aegyo-style to match the feeling.”
The unexpected contrast between her sad songs and cheerful personality made fans fall for her all over again.
4. Chen of EXO: Calm Presence, Big Impact
When Chen from EXO entered, the mood instantly shifted. His calm, charismatic aura spoke volumes—even before he did. Known for OSTs like “Best Luck” and “Shall We?”, Chen kept things minimal but impactful.“Thank you for the warm welcome. I’ll do my best on stage tonight,” he said modestly, drawing applause and admiration from fans.
His quiet confidence promised an unforgettable performance later that night.
5. K.Will: One Song, a Thousand Memories
As soon as K.Will stepped into the room, fans spontaneously burst into song—singing his timeless heartbreak ballad “Please Don’t” in unison. The moment was magical, and K.Will looked visibly touched.“Wow, you still remember that one? That’s probably the saddest song I’ve ever sung,” he joked, making the entire room laugh.
K.Will also teased that he would be performing rearranged versions of his old OSTs exclusively for KOSTCON 2025.
6. Lyn: Elegant, Kind, and Classy as Ever
Wearing a shimmering long gown, Lyn looked every bit the diva she is. Famous for her soaring ballad “My Destiny” from You Who Came From the Stars, she greeted fans in Indonesian, saying, “Apa kabar semua?” (How are you all?)“Indonesia will always have a special place in my heart. This song is for everyone who still believes in destined love,” she said before singing a short live snippet of “My Destiny.”
Fans were mesmerized—not just by her voice, but also by her gracious presence.
7. Kim Bum Soo: Veteran Voice, Gen Z Energy
Though the most senior among the artists, Kim Bum Soo brought some of the most youthful energy. He playfully struck Gen Z-style poses, complete with finger hearts, double Vs, and even aegyo gestures that sent the room into laughter.“Don’t think I’m old-school just yet! I’m also active on YouTube and TikTok these days. Don’t forget to like, subscribe, and share!” he quipped cheerfully.
Despite having a career spanning over 20 years, Kim Bum Soo remains as relevant and lovable as ever.
Behind Every Song Is a Story
All seven artists shared personal, sometimes funny, and always touching stories behind the OSTs that brought them international fame. Several even confirmed they would perform those very tracks—often in never-before-heard arrangements—on stage at KOSTCON Jakarta 2025.
From emotional tales of unexpected love to dramatic heartbreaks, these songs don’t just live in our playlists—they’re part of fans’ personal histories. And thanks to the intimate moments shared during the press conference, those songs now feel even more personal.
KOSTCON 2025 wasn’t just a concert. It was an emotional journey, a nostalgic reunion, and a celebration of K-drama magic brought to life through music.
Were you there? Which artist surprised or moved you the most? 💫🎤
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