
On July 10, COSMOPOLITAN Korea’s YouTube channel released a video titled “First Waterbomb Lesson with Kwon Eun Bi and Lee Min Hyuk, Who Owned the Stage.” The duo, both of whom stunned fans with their physiques Kwon Eun Bi in bold, body-hugging fashion and Min Hyuk shirtless with sculpted abs—shared insights into their Waterbomb prep.
To maintain their stage-ready bodies, the pair cooked diet-friendly meals like “diet futomaki,” “cabbage steak,” and “diet tteokbokki,” while discussing fitness routines. Eun Bi asked, “Which body part do you focus on most?” Min Hyuk answered, “My back. I noticed my weaknesses through monitoring—people talked about my pectorals a lot. I guess I was just born with it,” he laughed.
When asked for her top Waterbomb tip, Eun Bi quipped: “You can’t just drink water normally—you have to sip it like you’re in a commercial.” She confidently added, “Why was I the model? Because I’m me,” drawing admiration from Min Hyuk.
Eun Bi also shared she was debating between long hair and a bob cut for the performance, with Min Hyuk favoring the bob. She joked about being “soaked like a kidney bean,” and revealed that she once practiced Waterbomb routines in a bathtub, using a showerhead to simulate on-stage splashes.
Min Hyuk praised her dedication, saying, “That’s why you are who you are. You’re going to slay it again this year.”
On the day of the festival, Eun Bi was seen preparing for the stage with close friend Lee Si An, visibly nervous but excited. After delivering a flawless performance including a Beyoncé cover and a duet of “Rumor” with Si An she expressed her gratitude: “I’m so thankful I could perform without major mistakes or injuries. Thank you for all the support.”
She ended with a heartfelt message to fans: “I’m going to eat meat today! I’ve been dieting hard. Thank you, Rubies, for cheering me on see you at the concert!”