The Libyan government says Muammar Gaddafi’s youngest son and three grandchildren were killed in a NATO air strike over the weekend. Twenty-nine-year-old Saif al-Arab made headlines recently when it was revealed that pop superstars Beyonce, Mariah Carey, Usher and 50 Cent had performed at various private parties for Saif and his brothers in recent years.

Many of the artists later donated their earnings from the parties to charities after news broke about their employed connections to the Gaddafi family. NATO is denying targeting Muammar Gaddafi himself, but added that it continues to target military assets in Tripoli.