In K-pop's fast, ever-evolving realm, eager trainees endure a rigorous gauntlet of challenges, refining their talents in pursuing their dreams of taking the spotlight as idols.

While some music labels and entertainment companies prefer to keep their upcoming talents under wraps, only revealing them when they're primed for industry debut, others tend to reveal their trainees in advance. This approach sparks anticipation and thrill among fans, who eagerly track their progression.

Lately, the K-pop fandom is abuzz with chatter about a promising trainee from the industry titan, HYBE. This trainee has been training alongside the breakout rookie girl group, NewJeans. Adding to the intrigue, it's said that the trainee will be participating in HYBE/Belift Lab's upcoming girl group audition show with JTBC titled 'R U Next?'

Born in 2005, Lee Young Seo is said to have trained with NewJeans for about one year and even lived in the same dorm as NewJeans as they prepared for their debut.

After Young Seo's photos were released to the public, netizens were buzzing with excitement as they marveled at the young trainee's visuals. They commented, "Wow, she would fit so well with NewJeans if she joined them right now," "She has that cat-like visual," "She's so pretty," "She looks like Haerin a little bit," "Wow, I can see why she was training with them," "She really has that NewJeans look," "She kind of looks like Karina too," "Wow, she's beautiful," "I'm already excited to watch the show," "I think it airs on June 30 on JTBC," and "She looks like a mix between Minji and Haerin."