Kim Tae Woo was sued for gaining weight.
Weight loss company 'Juvis' signed Kim Tae Woo as their weight loss program model in September of 2015 for 1 year, paying him 130 million KRW ($117,000 USD). From his original weight of 113kg (250lb), the singer reached his target weight of 85kg (187lb) through the company's diet program in April, 2016. 'Juvis' had run various promotional material with Kim Tae Woo.
However, 'Juvis' alleged that after he reached his target weight, he stopped properly attending the weight loss program, citing busy schedules. As a result, he gained back over 10kg (22lb) within 4 months. Even after the contract, he was supposed to attend a yoyo prevention program every week, but never attended such either.
The court acknowledged that customers who saw Kim Tae Woo's weight gain started doubting the 'Juvis' program, and either tried to get refunds or cancelled their consultation. However, the court also acknowledged that he also had positive results from his ad campaign, and so therefore would have to pay 'Juvis' back half of the contract pay, of 65 million KRW (58,600 USD).