In 2022, soloist Jang Jane or Jang Jae In, who debuted with Superstar K Season 2, told ELLE Korea that she lost 15 pounds (7 kilograms) in a month—gaining attention for her weight loss and transformed visual. Soloist Jang Jane | @jangjane_/Instagram It seems, since then, Jang Jane has been successful in keeping the weight off! Jang…