You're Beautiful (2009)

Its also a music based drama...with leads being Jung Yong hwa and Park Shin hye since fans wanted them together so bad in You're Beautiful... Its simple and adorable..

the female lead pretend to be male. the second male lead was the one who first discovered about the pretense.

Both are Gender-Benders. Girl fights for acceptance and falls in love. Coffee Prince has common life theme, while You're Beautiful has a idol romance theme.

Similar story about a girl disguise as a boy who was robed in to sign as band member in place of her twin brother and had to live with other 3 male members.Its a rom-com,you will definitely like it if gender bender kind of drama is your genre.

Crossdressing girl with three other hot guys! Who could ask for more!

Both have the classic mean guy and a nice girl and to complete the love triangle there is that super nice guy that absolutely adores the girl but she chooses the mean guy. Watch these dramas if you love the whole Cinderella story theme with heaps of jealousy scenes!

they both have the main male lead's group/gang who are loyal to the lead female lead!

The story is similar in the sense it has a stuck-up, picky idol who falls in love with someone he normally wouldn't. It doesn't have a chaebol, instead an idol. The music is good, the acting is good. However, the second lead hardly has any lines in this drama. The third lead, Jeremy, is über cute!!

both have the female lead take her brother's place and name, by dressing up as a boy

The personalities of the characters are similar in these dramas. Also the love triangle between the three main characters is the same. I've watched both of these and really enjoyed them.

=> a woman uses her brother's identity and pretends to be him to enter an all male group/institution.
=> the main group consists of 3 guys and 1 girl pretending to be a man
=> the main guy and the second guy are both in love with the main girl
=> the third guy is very cute and has a cute crush on the main girl
=> the second guy is the first to know of the main girl's identity

Both female leads are dressed up as a guy.
Gender bender themed dramas.
Different style of using that specific genre

both have a female main character who dresses as a man.
both are set in the world of idol music.

It is the same plot. This Korean version is the best out the three shows (Korean, Taiwanese, and Japanese). By best I mean-- it's a "romantic" "comedy" and if you have not watched any version-- the Korean one is the funniest one. The Taiwanese one is sweet too because of Jiro Wang. The Japanese version is too abbreviated, not allowing enough time for all funny moments.

Ikemen Desu Ne is the Japanese remake of You're Beautiful. The great thing about it is that although it does have similar situations and concepts and follows the same basic storyline it isn't a carbon copy of the original. There are noticeable changes and situations that weren't in the original.