“My First Bikini...” Who Gave Lee Si-an Dozens of Designer Looks? Single’s Inferno 4 Star Spills Secrets

Model Lee Si-an is set to spill all the juicy behind-the-scenes stories from Netflix’s hit dating show Single’s Inferno 4 during her appearance on the April 9 episode of MBC’s variety program Radio Star.

In the episode, Lee Si-an reveals that a close celebrity friend gave her top-tier support before she joined Single’s Inferno 4, drawing attention. While she shot to global fame through the show, she also shares a surprising part of her past—she spent six years training to become an idol and even failed two idol survival auditions before transitioning to modeling.

After shifting gears to focus on modeling, her career began to take off. She shares that her schedule has doubled ever since appearing on Netflix’s reality show, and it’s a “happy kind of busy.”

She also recalls her very first meeting with the Single’s Inferno 4 production team. Desperately wanting to be cast, she intentionally practiced flirting ahead of time. She even wore a carefully selected outfit to the meeting and answered every question with sincerity—so much so that the show’s main PD gave her a double thumbs-up on the spot. Her bold yet lovable charm left the studio in laughter as she shared this behind-the-scenes story.

Lee Si-an, known for her standout fashion sense on the show, made headlines with her variety of bikini looks—but she revealed on Radio Star that she wore a bikini for the very first time in her life while filming on "Heaven Island." The cast was visibly surprised by this unexpected confession.

She candidly opens up about what really happened during the much-talked-about night she shared a bed with Yuk Jun-seo. Then, when asked, "What’s your relationship now?" she surprises everyone by revealing their current status.

Currently, Lee Si-an is actively promoting as the face of XEXYMIX, a fashion brand. With the release of its 25SS (Spring/Summer) swimwear collection, XEXYMIX has named Lee as their lead model to expand their connection with consumers this summer—raising excitement for both the brand and the model..

Get the latest on K-pop & K-drama here!