At a Korean professional baseball game, the cheer squad is part of the show. In the KBO League, each home team has a cheer leader on a stage beside the stands and a group of cheerleaders who dance from the first inning to the last. LG Twins cheerleader Shin Seo-yoon is a good example of how that stage now reaches people far beyond the ballpark: short fan-filmed clips of her routines passed one million views on YouTube this year.
How cheering works at a KBO game
Korean baseball crowds sing for almost every batter. Each player has a cheer song, and the cheer squad leads the stands through it with set chants and arm movements. When the home team records an out on defense, a short "out-song" plays and the cheerleaders perform a quick routine that usually lasts well under a minute.
Because those routines are so short, fans in the stands film them one at a time and upload them as vertical clips. These clips are called fancams in Korea: a camera that follows one performer instead of the whole field. Many of the most-watched cheerleader videos are 20 to 30 seconds long for exactly this reason.
Who is LG Twins cheerleader Shin Seo-yoon?
Shin Seo-yoon cheers for the LG Twins, the Seoul team that plays its home games at Jamsil Baseball Stadium. She was born in 2005, and in April 2026 the Korean outlet MK Sports introduced her as the youngest cheerleader on the LG squad. Her name is also written Shin Seo-Yeon in some video titles, and Chinese-language uploads use characters such as 申舒潤.
The cover photo is from an August 1 clip titled "노을 야호" (Yaho at sunset), uploaded by the YouTube channel 내맘찍영. She is wearing the white LG uniform with red stripes on the sleeves.
Five scenes from her 2026 season
The July 1 "Yaho" fancam is 22 seconds long and had about 1.44 million views when we checked on October 16. "Yaho" is one of the out-songs that appears most often in her collection, with clips from July through October.
On June 12 the LG squad did a special group out-song performance in matching white tops and jeans instead of their usual uniforms. The 90-second video from the channel Newstudio_mini shows the whole formation, which makes it easy to see where each cheerleader stands.
Cheerleaders often share the frame. This 17-second clip from October 4 shows Shin Seo-yoon with her teammate Go Ye-ji during an out-song.
The squad also travels. A clip uploaded on October 11 is titled "Busan Yaho," and another from September 16 was filmed in Changwon.
What the numbers say
We sorted 43 of her fancams by cheer song. "Holy Moly" and "Yaho" have the most clips, five or more each, followed by "3-2-1 GO" and "Nyang Nyang Punch." The single most-watched clip is a 20-second "Holy Moly" fancam from June 12 with about 1.69 million views. Thirty-five of the 43 videos are under one minute; the other eight are longer compilations of full stage performances.
For fans outside Korea, the easiest way to find her videos is to search her name in Korean, 신서윤 치어리더, and add "LG" to avoid mixing her up with other people who share the name.
If you want more than the five scenes above, the Shin Seo-yoon fancam collection on Kaderra gathers her LG Twins cheer videos in one place.