The iconic second-generation K-pop group SS501 is making a comeback as a trio under the name FIVE O ONE to celebrate their 20th debut anniversary with a world tour starting in Seoul this July.
A Long-Awaited Reunion
The legendary K-pop group SS501, known for their powerful performances and timeless hits, is reuniting after years of individual pursuits. On May 1, 2025, Kim Hyun Joong, Heo Young Saeng, and Kim Kyu Jong announced their return as FIVE O ONE, a project group formed to mark the group’s 20th anniversary since their debut in 2005. The trio plans to embark on a world tour starting in Seoul in July 2025, with stops planned across Asia, the Americas, and other regions.
The name FIVE O ONE symbolizes the group’s unity, reflecting their original name, where “SS” stands for “superstar singer” and “501” represents “five members united as one forever.” This reunion aims to reconnect with their dedicated fanbase, known as Triple S, and create new memories for fans who have supported them for two decades.
A teaser video released on the official FIVE O ONE YouTube channel heightened excitement. The video features a heartbeat sound and shadowy images of the members, stirring nostalgia among fans. The tour is expected to showcase both classic hits and possibly new performances, celebrating the group’s legacy.
SS501’s Legacy in K-Pop
SS501 debuted on June 8, 2005, under DSP Media with their EP Warning, featuring the hit song Never Again. The group quickly rose to fame with their harmonized vocals and diverse musical styles. Their discography includes iconic tracks like Snow Prince, U R MAN, Love Like This, and Because I’m Stupid, the latter gaining global recognition as part of the Boys Over Flowers soundtrack.
The group was a major player in the second-generation K-pop wave, particularly in Japan, where they achieved significant success. Their 2007 maxi single Kokoro debuted at number five on the Oricon chart, and in 2008, they became the first South Korean artists to win the Best New Artist award at the Japan Gold Disc Awards. Over the years, they released one Korean studio album, S.T 01 Now, seven Korean EPs, two Japanese studio albums, and three Japanese EPs.
The group stopped promoting as a full unit in 2010 when their contracts with DSP Media expired. Members pursued solo careers, with occasional subunit activities under Double S 301 (comprising Heo Young Saeng, Kim Kyu Jong, and Kim Hyung Jun) from 2016 to 2018. A brief performance in 2020 during Chuseok featured Heo Young Saeng and Kim Kyu Jong, but a full reunion remained elusive until now.
The Members of FIVE O ONE
The FIVE O ONE project includes three of the original five members:
Kim Hyun Joong, the group’s leader, gained fame as an actor in Boys Over Flowers. He has released solo music and performed in concerts across Asia. His return to Korean promotions has sparked mixed reactions due to past controversies, including a 2014 assault case involving his ex-girlfriend, for which he was fined, and a paternity dispute.
Heo Young Saeng, the main vocalist, has pursued solo music and musical theater, including roles in The Three Musketeers. He was part of Double S 301 and has remained active with fan events, including a recent showcase in Tokyo in August 2023.
Kim Kyu Jong, a vocalist and rapper, has explored solo music, acting, and visual art. He debuted in musical theater with Goong: Musical and joined Connectome Entertainment in 2023, teasing new music in August 2023.
Notably, Kim Hyung Jun and Park Jung Min are not participating in this project. Kim Hyung Jun, the maknae, has focused on solo music and variety shows, while Park Jung Min has pursued solo music and acting, expressing optimism about a future full-group reunion in 2018.
Fan Reactions to the Reunion
Fans have expressed overwhelming joy at the news, with many taking to social media to share their excitement. The announcement trended on platforms like X, with fans praising the trio’s commitment to their legacy.
As a TripleS and Henecia I am so happy to know about their comeback even as three, the name Five O One, proves that they’re united as one forever 😍 go on guys, I will always cheer for you. Thank you so much for this happy news💚💚💚💚💚 — @missdarkroses, April 30, 2025
The group that brought me to KPOP in 2009, my first loves in KPOP. 💚 Please release the tour schedule early for the trip planning of ahjummas. 🙏 — @maraiph, May 1, 2025
However, some fans expressed disappointment over the absence of Kim Hyung Jun and Park Jung Min, longing for a full five-member reunion.
A SS501 reunion is supposed to be Kim Hyung Jun, Heo Young Saeng, Park Jung Min, and Kim Kyu Jong TT.
The fact that they’re even doing this to try and make what money they can by selling people ‘memories’ is so pathetic.
Others criticized Kim Hyun Joong’s involvement, citing his past controversies as a reason for their unease.
I’m sorry but Kim Hyun Joong is the guy who literally disbanded SS501 himself. He thinks he has the right to do this now?
Mixed Sentiments in Korea
While international fans, especially in Japan, are thrilled, some Korean netizens have reacted negatively, particularly to Kim Hyun Joong’s return to promotions in South Korea. His 2014 assault case and subsequent controversies have left a lasting impact on his public image in Korea. Netizens have voiced their disapproval, with some praising Kim Hyung Jun and Park Jung Min for opting out of the project.
Despite the criticism, the trio remains focused on delivering a memorable experience for fans. The world tour is expected to draw significant crowds, particularly in Japan, where SS501 has maintained a strong fanbase.
What to Expect from the World Tour
The FIVE O ONE world tour kicks off in Seoul in July 2025, with specific dates and venues to be announced soon. The tour will include performances in Japan, Southeast Asia, and the Americas, reflecting the group’s global appeal. Fans can anticipate a setlist featuring classics like Snow Prince, Love Like This, and U R MAN, alongside potential new material crafted for the anniversary.
The teaser video suggests a nostalgic yet fresh approach, with the trio aiming to blend their signature sound with modern K-pop elements. Behind-the-scenes content and exclusive updates will be shared through Henecia’s official social media channels, keeping fans engaged.
SS501’s Impact on K-Pop
SS501 played a pivotal role in shaping the K-pop industry. Their innovative music, charismatic performances, and international success paved the way for future idol groups. They were among the first K-pop acts to break into the Japanese market, setting benchmarks for global expansion. Their influence is evident in the continued loyalty of their fanbase and the nostalgia their music evokes.
This reunion is more than a celebration of their past; it’s a testament to their enduring connection with fans. The FIVE O ONE project aims to honor SS501’s legacy while introducing their music to a new generation.
Current Updates
As of May 2, 2025, FIVE O ONE is preparing for their July tour, with rehearsals and promotional activities underway. Fans are eagerly awaiting the release of the tour schedule to plan their attendance. Social media buzz continues to grow, with Triple S sharing fan art, memories, and messages of support. Further details about potential new music or additional tour stops are expected soon.
CREDITS: insight
