A court in Singapore sentenced 26-year-old Australian man Johnson Wen to nine days in prison for rushing at actress and singer Ariana Grande during the Asian premiere of "Wicked: For Good".The incident involved Wen leaping over barriers to approach Grande on the yellow carpet while being photographed alongside co-star Cynthia Erivo.Judge Christopher Goh mentioned Wen's past disruptive behavior at other events, concluding that his actions posed a risk to public safety.