Beautiful Secret (2015)

Both have the same theme around music, a romance between a guy in the industry and a girl trying to get into the industry and a melodramatic mystery around the leads parentage.

Lee Soon Shin is the youngest member of a successful family. Despite her family?s successes, however, she seems to have failed to inherit any talent, and is marked as an oddball though she remains a bright, lively and courageous girl. She then meets the head of an agency named Shin Joon Ho, and he turns her life around.

The plot line is exactly the same-- spin on Anastasia. The lead actress is incredibly cute and loveable. Beautiful secret has more frustrating characters though.

they both have that missing daughter kind of genre and they also gain love from only one mother throughout their childhood and they both find their real mother

both have a missing daughter theme and they missing daughters end up with their lovers they both have a complicated past with an accident that resulted to the lost daughters

-if you enjoy long plot lines with lots of twists and flashbacks these are both similar
-both female leads are mistaken at first for different people
-one focuses on art/drawing while the other is about singing (both art related things)
-features peter ho in both!! although imo he's a bit old to be casted in BRF as his character