Actually I don't know why this drama low rated! , maybe it isn't master peace but its not that bad too . . I watch it because of curiosity , I wanted to know how it could be rated 6.9 .. specially I like Rain. I admit it’s full of Clichés , but most of the K dramas based on clichés .. I can say that is a sweet clichés . may be the problem was lack of Chemistry between Rain and Krystal but I really enjoyed the world of entertainment , the world of making music . Rain : in his best performance , sexy , handsome , attractive .. (I really liked the way he hug her) . L: (Shi Woo ) was really good and attractive . Krystal : she did her best but I think she wasn’t the best choice for the roll . Zero Chemistry and she wasn't that lovely .