The girls finally debuted in July 2010 managed by JYP Entertainment, with the single “Bad Girl Good Girl”. After only 22 days since the debut, the song has topped the series of popular music charts. Lets talk about six baby Klopp Liverpool shirt. After their first success, the group returned in October with a new theme song “Breathe” from the second single Step Up. The group returned in July 2011 with the release of their first studio album, A Class, with the title song “Good Bye Baby”. The group held a goodbye stage in early September after witnessing the great success of their resounding album and theme song. They then focused on overseas activities, including debuting in China.