Hip hop not only inspired some young people in Yogyakarta to form Jogja Hip Hop Foundation, a group that raps in Javanese, but it also has influenced some Jakartans to preserve their Betawi roots through music. During a recent performance at the Bentara Budaya cultural center in Central Jakarta, rapper Muhammad Amarullah and friends Dja’un and DJ Diandra Ramadhan entertained visitors with hip hop music with a Betawi twist. Wearing a casual outfit, Amarullah, who is called Kojek,...