The title song is the first time he sang a soulful ballad, and actress Ku Hye-sun appeared in the music video, which depicts the agony after a break up.
"Y.BIRD from Jellyfish Island With Seo In Guk" is the eighth digital single by South Korean singer, Seo In-guk.
Seo Taiji | SEO | Kim Jong-seo | Seo-gu | search engine optimization (SEO) | Seo Young | Seo Sun-hwa | Seo Min-woo | Seo Ji-Hun | Seo In-guk | Seo Hyun-jin | Seo Ho-Jin | Can Seo |
On March 3, 2011 TS Entertainment revealed that Bang Yongguk will be the featured rapper in Song Jieun's "Going Crazy".
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In March 2011, he was featured in Song Jieun's Going Crazy and the single became a number one hit in South Korea.
On February 26, 2007, Seo In-Young released her first solo album, Elly Is So Hot.
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On July 23, 2008, Seo In-Young released her second solo album, Elly Is Cinderella.
This is different from the concept of state (guk or Sino ko: 國, walled-town state, etc.) in the discipline of Korean History.