Coboy Junior was established on 23 July 2011, when manager Patrick Effendy called Aldi, Bastian, Iqbaal, and Rizky together for private auditions.

Effendy, meanwhile, had previously established a group of child singers which performed under the name Superkids.

In response, Rizky says that it is normal for 12- to 13-year-old boys to like girls, and that there is no issue so long as the band does not go too deep into the dynamics of love.

[6] By January 2013 Coboy Junior's single "Eeaa", about puppy love, had made the band nationally popular.

In two days the film, directed by Anggy Umbara and costarring Astri Nurdin, Fay Nabila, Abimana Aryasatya, Nirina Zubir, and Dewi Sandra, was seen by over 150,000 people.

[9][10] The film followed the bandmembers as they underwent personal development and attempted to win a mixed singing and dancing competition.

Coboy Junior consists of four boys:Alvaro Maldini Siregar (Aldi), Bastian Bintang Simbolon (Bastian), Iqbaal Dhiafakhri Ramadhan (Iqbaal), and Teuku Rizky Muhammad (Rizky), whose ages as of March 2013 were 14, 14, 14 and 16 respectively.