Idol Unveils Major Slimdown Following Her Shocking Weight Gain Reveal
Looks like Jewelry member Seo In Young is right on track with her weight loss goals!
On December 8, 2025 (KST), K-Pop’s OG sexy icon shared a photo of herself on Instagram, noting, “Now that I’m losing weight, my body definitely feels lighter.”

She hinted at both a comeback and a YouTube channel launch as what’s keeping her motivated on her weight loss journey.
I’m thinking of doing a live next week. What time would be good?
#PreparingForAComback #PreparingForYouTube— Seo In Young
A week before that, Seo In Young also mentioned keeping a strict diet of vegetables to meet her goals.
View this post on Instagram
Saturday 😜 #CuccioloTerrazza
#TheDietGoesOn #I’mOnlyEatingVeggies— Seo In Young
Whatever she’s doing, it’s working—her jawline in these photos looks noticeably sharper compared to when she went live back in October, shocking her fans with her weight gain.
At the time, the idol revealed that she had gained over 22 pounds (10 kilograms).
Read more about it here:
Divorced Idol Shocks Fans With Dramatic Weight Gain And Nose Implant Removal