EXO is a boy group that debuted in April 2012 under SM Entertainment — one of South Korea's largest entertainment conglomerates — with an unusually large roster of twelve members. The name derives from "Exoplanet", a reference to worlds beyond our solar system. Their fanbase goes by the name EXO-L.
The group's journey to its current configuration has been turbulent. Shortly after debut, three members — Kris, Luhan, and Tao — departed, leaving a stable nine-man lineup for several years. More recently, members Chen, Baekhyun, and Xiumin stepped back from activities following a contractual dispute with SM Entertainment over revenue and royalty settlements. That leaves Suho, Chanyeol, D.O., Kai, Sehun, and Lay as the six nominally active members — though in practice, as this comeback demonstrated, even that number proved optimistic.
From twelve to five: a compressed history
EXO are widely regarded as defining figures of K-pop's so-called "third generation", a cohort of acts that achieved mass commercial success in the mid-2010s and established the genre's global footprint. The group broke records consistently, racking up seven million-selling albums. An early structural innovation — operating simultaneously as EXO-K (promoting in South Korea) and EXO-M (promoting in China) — helped them cultivate fanbases across Asia in a way few contemporaries managed.
Their eighth studio album, *REVERXE*, released on 19th January, arrived roughly two and a half years after the seventh record, *EXIST*, which came out in July 2023. The lead single, "Crown", blends Atlanta trap drums with heavy-metal guitar and EDM synthesisers into what producers describe as a hard-dance track. The music video accumulated six million views within seven hours of release. First-day album sales reached 265,934 copies; the song subsequently topped Melon's latest-releases chart, and the group swept all major televised music-show awards in their second week of promotion — a clean sweep known in the Korean industry as a "grand slam".
The membership question
The comeback was not, by any measure, a full reunion. Chen, Baekhyun, and Xiumin notified SM of their intention to terminate their exclusive contracts in June 2023, citing disputes over revenue-sharing and accounting transparency. A protracted legal battle followed, but the trio have suffered a series of courtroom setbacks, losing suits over withheld settlement data and alleged unfair contract terms. They did not participate in this album cycle.
Lay's situation is different in character, if equally complicated. His contribution to *REVERXE* marked his first involvement in an EXO album since "Don't Fight the Feeling" in 2021 — a four-year gap. His participation in fan meetings and live performances would have been his first such activities with the group since "Lotto" in 2016, a gap of a decade that generated considerable excitement among fans. Lay himself noted: "I am working hard as EXO's Lay, making sure I don't cause any harm to EXO. I also wanted to show this to the Chinese fans who have kept waiting."
Those plans collapsed abruptly. On 14th December last year, amid a sharp deterioration in Sino-Japanese diplomatic relations, Chinese authorities issued what amounted to a compulsory recall order — and Lay withdrew from the fan meeting on the day itself. He subsequently missed the comeback showcase, television music-show appearances, and the 2026 SMTOWN concert. The album cycle proceeded with five members: Suho, Chanyeol, D.O., Kai, and Sehun.
Two unresolved problems
EXO and SM face challenges on two distinct fronts. The first is the dispute with Chen, Baekhyun, and Xiumin. Their management agency, INB100, disclosed in July that it had met directly with SM to explore the terms of a potential full reunion, but the two sides remain publicly at odds following repeated legal defeats for the three members, and the timeline for any resolution is unclear.
The second is Lay's return. His absence this time stemmed not from any personal choice but from diplomatic circumstances entirely outside his control, which means the door remains open should geopolitical conditions shift. For now, however, predicting when — or whether — that might happen is impossible.
What the five-man run did demonstrate is that EXO's brand retains real commercial force: breaking 260,000 first-day sales and achieving a broadcast grand slam without three contracted members and amid a last-minute defection by a fourth is no modest feat. For SM, the task ahead is to preserve that resilience while finding a durable solution to the group's long-standing membership puzzle — an old problem that shows little sign of resolving itself.