Together Pepep, Charly Van Houttens and Dedy Sudrajat or commonly known as the frontman of the group Pepeng Music wing Malay ie ST 12 (the name is an abbreviation of the East Station 12, the studio where they usually practice). Two people who once soared through the song-tembangnya like "PUSPA", "Do not Ever Change" and "At Last" have decided to quit the band who have raised their name in the Indonesian music scene, due to a different vision of the band with Pepep.
In early 2012, they re-formed a band that was named Faithful which refers to the name of their fanbase while still a member of the band with members ST 12. Only two people, namely the Charly (Vocal) and Pepeng on (guitar), but Alsa is then incremented members (drummer) and NHRT (bassist). The hit single in FAITHFUL BAND debut album is "Do not ngarep". Her debut album was released in 2012 One Heart.
But in the year 2013, Alsa Separated from Setia Band because of issues Honor / Payments received from the Management Setia Band. Since joining Charly Setia Band and Pepeng in 2011, the status of Alsa only 'additional drummer', not a fixed band. Until now, Alsa simply replace the position left Pepep, previous drummer. Then in 2014, Anton Widiastanto a former drummer for the famous music group Sheila on 7 was asked to join the band Faithful although its status only as additional drummer only.