Bubble Pop! is the debut EP by Hyuna. It features the title track and viral video "Bubble Pop!".
The EP was released on July 5, 2011. The video for the song has been viewed over 50 million times.

After several teasers, Hyuna released the mini-album Bubble Pop!, the same day as the title song's MV premiered.

On June 29, 2011, "A Bitter Day" was released on various music portals as a special digital single from the album. The single quickly climbed up the charts.


On July 5, 2011, "Bubble Pop!" was released which Cube Entertainment described as "dance song that you can cheerfully enjoy in the summer. It has a strong addictive chorus with a distinctive melody and sound effects". The full music video was then released on July 5, 2011 on their official YouTube channel together with the release of their album in different record stores and various online music portals. The music video features MBLAQ's Lee Joon.

HyunA promoted the title track "Bubble Pop!" on music shows from July 8, 2011 on KBS's Music Bank, MBC's Show! Music Core, SBS's Inkigayo and Mnet's M! Countdown. The song "Attention" was chosen to be part of the comeback.

Due to the title song "Bubble Pop!" getting banned from promotions because her choreography and outfits in stage performances and music video were deemed 'too sexually suggestive'; Cube Entertainment decided to follow through the promotions of the EP with the song "Just Follow", with a special feature of the member Zico from the boy band Block B. The promotions ended on August 21, in SBS's Inkigayo.

Bubble pop debuted at number three on Gaon Digital Singles weekly chart, Korea's official chart, It has sold a total of 2,694,310 digital copies.

Track listing

1. Attention
2. Bubble Pop!
3. Downtown (featuring 4Minute's Jiyoon)
4. A Bitter Day (featuring G.NA and Beast's Jun Hyung)
5. Just Follow (featuring Dok2)