Act. 1 The Little Mermaid
2016 debut EP by Gugudan

Act. 1 The Little Mermaid is the debut extended play by South Korean girl group Gugudan. It was released digitally and physically on June 28, 2016, by Jellyfish Entertainment and distributed by CJ E&M.
Background and release
On June 13, 2016, Jellyfish Entertainment launched the band's official website and announced via SNS that the group would debut with the mini-album Act. 1: The Little Mermaid and title-track "Wonderland".
Teasers featuring each of the members for their music video were released from June 14 to 16th. On June 28, the song's music video were released online and through Naver's V App.
The EP was released on June 28, 2016, on Melon and various sites in South Korea and on iTunes for the global market as a digital download.
Promotion
The music video for the title track "Wonderland", was released on June 28, 2016, in conjunction with the EP and accumulates over 2 million views. Gugudan held a live showcase on June 28.
On June 29, the group made their official debut on MBC Music's Show Champion performing "Good Boy" and "Wonderland".
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Nov 9, 2025. The linked authority identifier is Q24846693. None of the 1 selected statements returned an explicit reference. The first chronological checks are 2016.
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