Singer-turned-actress IU is slowly but surely extinguishing the doubting voices and harsh criticisms of the naysayers against her acting skills.

With every episode, IU, who is the main character of drama, "Best Lee Soon Shin," is displaying a heightened level of maturity as an actress who can carry the team.

Though a bit rough in the earlier episodes, IU has now garnered much respect with her improved range of expression of emotions. With a right balance of listening in on the criticisms and channeling the harsh words into hard work, IU has developed into a better character. Sources say that she keeps her script practically glued to her hands during her busy schedule.

An associate from the drama commented, "The development of IU's character in 'Lee Soon Shin' is almost parallel to what she is going through off the screen as an actress. We hope that the viewers will notice and appreciate the efforts she is making and ultimately enjoy the work we put out on air."