How long a K-pop group stays looked up after its peak

The whole set

That last line matters. An act whose best month is the most recent month cannot have declined yet, and counting it as durable would be wrong. Only 12 acts have gone twelve months or more past their peak and still hold half of it.

Held on longest — acts whose peak month drew 50,000 or more

Restricted to the 100 acts with a peak of at least 50,000 reads, so that a small article with noisy months cannot lead the table.

The gap between first and second place is the finding here, not the ranking itself.

The largest peaks, and what is left of them

A very large peak does not buy a slow decline. Several of the biggest months in this table were an act's debut or a single event, and the month after was already half.

Past their peak by a year or more, and still above half

Most of this list is not idol pop. Several are rock and indie acts whose readership was never large enough to spike, and a flat line never has a peak to fall from.

When the peak arrives

Our reads begin in July 2015, so for an act that debuted earlier we cannot know whether its real peak came before we were looking. This table therefore uses only the 183 acts that debuted in 2016 or later, whose whole career sits inside the window. The other 350 acts with a known debut year are left out of this question rather than given a peak we cannot verify.

The median gap is two years. Fewer than one act in six had its biggest month in the year it debuted, and the tail runs long — some acts do not reach their best month for six years or more.

The fall has not changed in thirty years

For acts that debuted before 2016 this is the fall from their highest monthinside our window, which need not be their career high — but the descent is measured the same way for every act, and it does not vary by generation.

What this is not

This is not a popularity ranking. It counts what people looked up, not what they listened to.

Acts we could not measure are counted separately, never filled in as zero.

A Wikipedia article grows more detailed after an act becomes known, so early months read low partly for that reason.

The current month is excluded because it is not finished.

(G)I-DLE has no country property on its Wikidata item and so is absent from this table. That is a miss on our side, not a zero.

Where else this leads

Korean titles lose half their reading in about the same two months — we measured that separately, on a different unit, and the timescale came out the same. Comics run the other way: a Korean webtoon is read 14 times more once a drama exists, so an adaptation builds attention where a comeback mostly spends it.

Sources

Acts and debut years — Wikidata SPARQL (P31/P279* Q215380 musical group, P495 country of origin Q884). Reads — Wikimedia Pageviews REST API, English Wikipedia, all-access, agent=user (bots excluded), monthly, 2015-07 ~ 2026-08. The current month is excluded because it is not finished. Collected 7 September 2026, 10:15 KST.