Y.BIRD from Jellyfish Island is a series of periodically released single albums, created by Jellyfish Entertainment's CEO Hwang Se-jun for the purpose of showing the different sides of their artists to the public. Jellyfish Entertainment artists who have participated in the project so far have been Lee Seok Hoon, Seo In-guk, VIXX and VIXX member Leo.

Y.Bird from Jellyfish Island with Lee Seok Hoon by South Korean singer, Lee Seok Hoon. It was released on June 14, 2012, under the Jellyfish Entertainment label and was the first in the Y.Bird from Jellyfish Island project.

"Y.BIRD from Jellyfish Island With Seo In Guk" is the eighth digital single by South Korean singer, Seo In-guk. The single was released on February 4, 2013, containing the title track "I Can't Live Because of You" featuring Verbal Jint. "I Can't Live Because of You" tops various online charts upon its release including Bugs, Cyworld and Soribada.

On January 30, 2012, aphoto of Seo in recording studio spread in the internet gaining interest of fans. It was then reported that he will indeed release a new track soon. On February 4, the single was released digitally and features Verbal Jint.

The teaser for the music video was uploaded through Jellyfish Entertainment's official YouTube account. The full music video was released on the same day of the single's release.

Y.BIRD from Jellyfish Island with VIXX & OKDAL is a special collaborative single album by the South Korean boy band VIXX and indie pop duo OKDAL. It was released on October 11, 2013, under the Jellyfish Entertainment label. It features the title track "Girls, Why?".

On October 2, a press release from VIXX's promoter, Lune Communication confirmed that VIXX would be releasing a special collaboration album with female indie pop group OKDAL (Oksang Dalbit) on the 11th.

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