KUALA LUMPUR: Main roads across the city and near Istana Negara here are festooned with yellow banners and posters featuring the Yang di-Pertuan Agong Al-Sultan Abdullah Ri’ayatuddin Al-Mustafa Billah Shah and his consort, Raja Permaisuri Agong Tunku Hajah Azizah Aminah Maimunah Iskandariah, for the King’s official birthday celebration, today.