f(x)'s Luna talked about her weight loss.
On the May 15 airing of MBC Every1's 'Korean Foreigner,' Luna gained attention for her slim figure. On this, the idol shared, "I lost 12kg (26lbs) since my debut. My YouTube channel was over 200,000 subscribers. The video on diet tips has over 1 million views."
She then shared a diet tip on the spot. Luna hit her armpit, and said, "Hit it 300 times," and explained this helps with losing the arm fat.