Actress Song Ji Hyo's doppelganger is becoming a hot issue. The heroine is Son Da Hee.

In recent online community, captured photos of Son Da Hee were posted under 'Song Ji Hyo's look-alike'.

The picture is from a Mnet program aired on Tuesday, where Son Da Hee came out as the 12th 'pretty girl'. With the nickname of 'Kim Yu Na of the Swimming Field', Son Da Hee not only has amazing swim skills, but also eye-catching beauty.

What caught even more attention was her look-alike features with Song Ji Hyo. Her narrow face shape and her smile looks a lot like those of Song Ji Hyo.

Internet users commented, "Her smile looks just like Song Ji Hyo's smile", "She's pretty enough to become a celebrity", and "Song Ji Hyo is prettier.”