BTS Jungkook's fans celebrate January 9 every year because Jungkook marked 01/09 as 'Jungkook Day' a few years ago. Since then, the 9th of January has been celebrated by the fandom as his day.

Fans showered Jungkook with love, prayed for his health and happiness. They celebrated their favorite artist on this day by trending, donating to organizations, streaming his songs, and doing support projects for him.

'#HappyJKDay2022' and '#OurGoldenStarJK' occupied the top Worldwide trends as they trended at #1 and #2, respectively.

Korean fans also showed off their love for him as multiple keywords trended on South Korea Twitter.

Jungkook's Union of fanbases, GoldenJKUnion, made an event in their local diner 'Happy Smiles' and donated bags of toys to 40 low resources kids in Jungkook's name to bring smiles on their faces.

Jungkook's U.S fanbase, USAJUNGKOOK, and their team donated to St.Jude Medical Center for research and treatment of children with pediatric cancer.

Jungkook's Japanese fanbase, JungkookJapan_ prepared a giant 25-meter ad for Jungkook on JK Day at Lotte Young Plaza in Seoul, South Korea.