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ablume, a three-member South Korean girl group under Massive E&C, rose from the ashes of legal battles as former Fifty Fifty members, debuting in 2025 with themes of growth and renewal.​

Group History

Saena, Aran, and Sio—core vocalists of Fifty Fifty’s viral “Cupid” era—filed for contract termination against Attrakt in June 2023 over alleged mistreatment, leading to lawsuits and contract endings by October 2023. Signing with Massive E&C in August 2024, they reintroduced as ablume on October 15, 2024, drawing industry backlash from the Korea Management Federation. They debuted May 9, 2025, with Echo, reuniting with ex-manager Ahn Sung-il (SIAHN) for production, symbolizing blooming after hardship.​

Members Table

ablume’s trio leverages prior stardom for emotive, synth-driven pop.​

Stage NameReal Name/Age (as of 2025)PositionNotable Past
SaenaSong Ja-yeon / 21Leader, Main VocalFifty Fifty co-founder
AranJeong Ji-ho / 20Main Rap, Dance“Cupid” choreo contributor
SioJeong Ji-hyo / 20Lead Vocal, VisualEnglish proficiency

Saena Profile

Saena (Song Ja-yeon, born 2004) led Fifty Fifty’s formation in 2022, co-writing early tracks before the 2023 disputes. As ablume’s leader, she drove the rebrand, emphasizing resilience: “We spent a lot of time thinking about our name because we wanted something that could truly reflect our story.” Her main vocals anchor Echo‘s harmonies, marking personal growth post-legal saga.​

Aran Profile

Aran (Jeong Ji-ho, born 2005), a rapper and dancer, contributed to Fifty Fifty’s “Cupid” choreography and global promotions. In ablume, she adds rap flair to blooming narratives, navigating backlash with determination after Attrakt’s damages suit. At 20, her energy fuels live stages and subunit potential.​

Sio Profile

Sio (Jeong Ji-hyo, born 2005) shone as Fifty Fifty’s visual and lead vocal with strong English skills for international appeal. For ablume, she views “Echo” as their origin story: “The name ablume means to bloom… Our debut song felt like the perfect representation of that beginning.” Her multilingual charm supports global outreach.​

Releases

  • Debut single album: Echo (May 9, 2025), lead track “Echo” with lush synths and MV evoking past hits like “Cupid”; produced by ex-manager Ahn Sung-il.​
    No further albums or singles confirmed by late 2025.

Korea JoongAng Daily (Oct 15, 2024): Formation announcement and Fifty Fifty context.

People Magazine (May 9, 2025): Exclusive on re-debut, Keena relations, and “long dark tunnel” journey.

Jae Ha Kim Substack (May 8, 2025): Deep dive on legal battles and “Echo” production.