On June 8, 2013, Crayon Pop performed a preview version of their new song "Bar Bar Bar" (Hangul: 빠빠빠) live for the first time. A story version music video was uploaded to youtube on June 13 before the song's digital release on June 20, 2013.
Following the release of a dance version music video for "Bar Bar Bar" on June 23, 2013 Crayon Pop began to draw interest due to their unique stage outfits and choreography. As the song went viral, "Bar Bar Bar" gradually began to climb the Korean digital music charts, eventually reaching the upper positions of most major real time chart listings. "Bar Bar Bar" ranked #1 on the weekly Billboard K-Pop Hot 100 chart for the first time after a full 6 weeks on release.
On August 25, 2013 Crayon Pop performed for the first time in the United States. The group performed the songs "Bar Bar Bar" and "Dancing Queen" at the annual convention KCON which was hosted at the Los Angeles Memorial Sports Arena from August 24-25, 2013. A fan meetup was scheduled for their appearance at KCON '13 but was later cancelled.
On August 30, 2013 Crayon Pop recorded their first ever win at Music Bank with "Bar Bar Bar".
