Lee Ji-eun a.k.a IU, a south Korean singer cum actress, recently shared her fitness secrets with the fans while interacting with Super Junior member Shindong during a radio show.

The 23-year-old revealed that she asks her manager to keep a watch on her and stop her from having excess food during the diet season.

However, the actress of Scarlet Heart Ryeo fame revealed that she is not very friendly while she has to lose weight for promotional activities. According to her, she becomes very sensitive and her manager finds it hard to deal with her.

Explaining further, the Modern Times singer stated that she gets angry with the manager when he takes her food away and he feels that its not always easy to work with her.

Agreeing with IU's statement, her manager said (via Koreaboo), "IU is always adorable and lovely towards me but when she does this I can't help but hate her."

Meanwhile, the Good Day singer recently received overwhelming responses from the critics for her performance in the Korean mini-series Scarlet Heart Ryeo, in which she is portraying the role of a court lady named Hae Soo.

"IU's performance was explosive, and all who witnessed the scene was devastated," stated a Hong Kong based news portal called Pop News.

Apart from her onscreen appearance in SBS period drama, Ji-eun was recently featured in the comeback single of Jung Hyung Don and Defconn, titled Decision. It was released on September 22.