Voice of Baceprot (Sundanese pronunciation: [ba.t͡ʃə.prot]; bah-che-prot, lit. 'loudness/noise')—often abbreviated as VOB—are an Indonesian all-female rock trio formed in Garut, West Java, in 2014. The group consists of Firda Marsya Kurnia (vocals and guitar), Widi Rahmawati (bass), and Euis Siti Aisyah (drums). They sing in English as well as Sundanese. The word baceprot means "noisy" in Sundanese. It is meant to represent the band's musical style.
VOB formed in the West Javan town of Singajaya, Garut, in 2014, after the members, who were school friends, were introduced to heavy metal by their counselor, who saw music as an outlet for their proactive, rebellious nature, which had gotten them in trouble with teachers. They generated numerous views on YouTube with a cover of a Rage Against the Machine song in 2015. The trio continued to produce videos of cover songs by artists such as Red Hot Chili Peppers, Metallica, and Slipknot. The band presented a seemingly contradictory image, with their heavy style of playing, in contrast to their modest Islamic attire, including the hijab, worn by all three members. This has caused them to receive criticism from some conservative Muslims in their hometown of Garut. They have also received support, however, from various quarters. All three women had been learning to play musical instruments at school and were encouraged by their theatre coach to sign up for band competitions. Their coach went on to become their manager as well as lyricist.