#REDREDChallenge is the TikTok dance challenge built around HYBE rookie group #CORTIS’s title track #REDRED. The routine — sometimes called the “flapping ear” or “wiggle-ears” dance, and originally launched as the “REDRED bottle challenge” — became one of the biggest cross-genre participation moments of early-to-mid 2026 K-pop, pulling in BTS, TXT and ENHYPEN members alongside non-K-pop TikTok creators and helping push the song to 10 weekly wins on Korean music shows by the end of May.
Quick Facts
- Launched: Late April 2026, with the release of CORTIS’s second mini album
- Group: CORTIS, a 5-member HYBE / BIGHIT MUSIC rookie group
- Move: Short head-tilt and “flapping ear” / “wiggle-ears” choreography
- Reach: 4 separate REDRED short-form clips passed 10M views by April 28; MV crossed 10M views in 12 days; J-Hope’s TikTok post passed 15M views
- Chart impact: 10 weekly music-show wins (Inkigayo, Show! Music Core, M Countdown, etc.) by late May 2026
Origin
CORTIS launched the challenge on its own TikTok and other digital platforms alongside the April 2026 release of “REDRED,” the title track of its second mini album. Korean outlet STARNEWS reported on April 28 that “REDRED”-related short-form videos were already dominating TikTok, with senior HYBE labelmates — BTS’s Jung Kook (filmed performing the dance through Incheon Airport), J-Hope, members of TOMORROW X TOGETHER and ENHYPEN’s Ni-ki — all participating within the first week.
How It Works
The choreography distills “REDRED“‘s chorus into a few seconds of head-tilt and hand-cupped “ear-flapping” motion, which reads instantly on a phone screen. The original group-issued clip framed it as a “bottle challenge” — a bottle-pass setup — but the move that actually spread on TikTok is the ear-flap: easy to learn, hard to do badly, and visually distinct from the bigger floor routines K-pop usually exports.
Cultural Impact
Cross-genre participation. The biggest signal of breakout reach was who showed up: BTS members joining a HYBE rookie group’s challenge gave it instant credibility, and creators outside K-pop fandom posted versions because the move was simple enough to attempt without studying the full choreography.
Chart consequences. CORTIS marked a milestone 10th music-show win with “REDRED” by the end of May 2026, an unusually long winning streak for a rookie group — coverage in allkpop and KCulture explicitly credited the TikTok challenge as the engine driving the song’s chart longevity.
A template for HYBE rookie launches. Industry coverage in Dojeon Media called the challenge “a successful example of how K-pop groups can leverage social media to create viral moments that drive chart success,” noting CORTIS used the rollout playbook BTS pioneered but adapted it for short-form video first.
Variations & Related Tags
- #REDRED — the song itself
- #CORTIS — the group
- #FlappingEarDance / #WiggleEarsDance — the choreography itself
- #REDREDBottleChallenge — CORTIS’s original launch framing
Sources
- https://www.kpopecho.com/2026/05/cortis-unleashes-redred-bottle.html
- https://www.starnewskorea.com/en/music/2026/04/28/2026042814042395113
- https://www.starnewskorea.com/en/music/2026/05/03/2026050317511140320
- https://www.allkpop.com/article/2026/05/cortis-takes-9th-win-with-redred-charismatic-stages-on-may-24-episode-of-inkigayo
- https://www.dojeonmedia.com/post/why-cortis-s-redred-is-taking-the-global-music-charts-by-storm