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Relive your youth! A roundup of nostalgic K-pop boy groups that were popular back in the day

The K-pop idols we passionately supported in our youth still sparkle brightly in our hearts, don’t they? Now a global phenomenon with worldwide popularity, K-pop has come a long way.

In this feature, we’ll introduce the male groups of the second generation—the ones who brought a fresh breeze to Japan’s music scene and captivated audiences with overwhelming performances—starting from the very first generation that began it all! Many of these groups are still going strong in the Reiwa era, and plenty of members are active as actors or even label CEOs.

So whether you listened to them in real time back then, or you’re a younger K-pop fan today, be sure to check them out.

Relive your youth! A roundup of nostalgic K-pop boy groups that were popular back in the day (11–20)

ObservationNEW!god

god(지오디) ‘관찰(Observation)’ OFFICIAL MV
ObservationNEW!god

As a leading presence of first-generation K-pop, g.o.d continues to be loved by a wide range of generations.

Their journey, which began with works released in 1999, shines with a special brilliance in the history of Korean pop music.

Their approachable sound blends R&B and hip-hop, paired with down-to-earth lyrics centered on themes like family love and friendship.

Signature songs such as “To Mother” and “Road” remain enduring favorites, celebrated as masterpieces with messages that touch the heart.

From 2002 to 2003, they achieved an ambitious milestone with 100 concert performances and garnered numerous music awards, proving their undeniable talent.

Their performances, brimming with each member’s unique charm, make them a wonderful group that everyone seeking heartwarming music should listen to.

In conclusion

We’ve introduced the groups known as the first and second generations that laid the foundation of K-pop. Their fiery, powerful performances are still brimming with an unfading appeal even today. Watching the videos with friends who shared those youthful days, reminiscing about the energy and memories of that era, can make for a wonderful time. Please enjoy a heart-throbbing moment together through music!