It was released digitally on April 29, 2012 and physically on May 2, 2012.
The title track, having the same name, "Twinkle", was released simultaneously through iTunes for the global market, which included a special photo booklet that was different from its offline release.
"Twinkle" was released as the subgroup's first single on April 29, 2012. It was written and produced by Brandon Fraley, Jamelle Fraley, and Javier Solis, under their production team Jam Factory.
It was recorded at Sunset Blvd Studios in Nashville, Tennessee. The song is a dance pop track with influences of funk, electropop and go-go, drawing inspiration from music during the 1970s and 1980s, specifically that of Stevie Wonder.
III. Commercial Performance
The album reached #1 on the Billboard World Albums and #2 on the Billboard Heatseekers Albums, and #129 on the Billboard top 200 chart.
As of October 2016, the album has sold over 160,000 copies in South Korea.
Twinkle " peaked at number 1 on the Gaon Digital Chart and number 2 on Billboard Kpop hot 100. As of July 2014, it has sold more than 2,520,485 digital downloads in South Korea.
2. Baby Steps
5. Goodbye, Hello
6. Love Sick
V. MV and Album Tracks