Secret's Song Ji Eun's 'It's Cold' is hot issue online.

'It's Cold' is a beautiful song with soft melody and well-harmonized voice of Song Ji Eun, theme song for Koo Hye Sun on SBS 'Please, Captian'. The song is getting great reviews on line and ranking high on music charts.

Especially, Song Ji Eun's soft voice touches viewers' emotion.

Netizens commented "Love the voice", "Hearting touching feeling".

Photo: TS Entertainment