Canadian singer Justin Bieber has been slammed online for wearing a keffiyeh as he was spotted leaving the Chateau Marmont over the weekend in Los Angeles. The keffiyeh, a chequered fabric, has come to represent Palestinian solidarity, resistance and steadfastness. The scarf has been seen over the last year at pro-Palestine rallies and protests, as people around the world call for a Gaza ceasefire. The 30-year-old was photographed with the keffiyeh wrapped around his head while driving his car. Online, many slammed the singer for his support for Israel, amidst the ongoing war on Gaza which has…