- BTS's Jeon Jungkook is known for the "Jungkook effect," where he sells out almost anything he uses.
- On April 8, Jeon was spotted wearing a modest silver chain at the airport before a flight to LA.
K-pop international sensation BTS's youngest member Jeon Jungkook has unintentionally sold out all kinds of things in the past — from detergent to lip balm.
Known as the "Jungkook effect," virtually anything that the 25-year-old singer is ever seen wearing or using has been promptly swept off the shelves.
The most recent example would be a 24-inch-long silver chain he sported at Incheon International Airport in Seoul on his way to LA on April 8.
The Tuewid Rope Silver Chain Necklace is listed for 76,000 Korean Won, or $58, and is also available in gold. Both versions are officially sold out on the South Korean brand Tuewid's website.
Tuewid carries mainly casual streetwear, from hoodies to sweatpants. It also sells a small range of accessories including caps and necklaces.
On April 17, the brand announced on its Instagram page that they are organizing a reorder in limited quantities due to popular demand.
This isn't the first time Jeon sold out an item without officially endorsing it.
In 2019, he accidentally caused a temporary fabric softener shortage after he casually mentioned the brand he uses on the group's official forum chat with fans, according to K-pop news outlet Koreaboo.
In the same year, a toothbrush he was spotted using in an official group vlog was also rapidly sold out shortly after the video was uploaded, per Koreaboo.
Though Jeon has since been cautious about sharing his favorite products, fans have been quick to identify them, even through the most blurry livestreams or grainy photos.
Representatives for Tuewid did not immediately respond to Insider's requests for comment.