Islamists and conservative Muslims have decried Lady Gaga’s upcoming concert, saying her revealing costumes and sensual dance moves are forbidden by Islamic law. The chairman of the Islamic Defenders Front, Habib Rizieq, said his group could not guarantee security if the concert were held. Indonesia has the largest Muslim population in the world. In March, the pop star got a thumbs-down by the country’s highest Islamic authority, according to The Jakarta Globe. Indonesian Council of Ulema chairman Cholil Ridwan was urging Muslims not to attend the controversial singer’s upcoming concert in Jakarta, the newspaper reported. “(The concert is) intended to destroy the nation’s morality,” Ridwan told the Globe.