KUALA LUMPUR: The clopping sound of hooves striking the tarred road from magnificent white horses will accompany the arrival of Yang di-Pertuan Agong Al-Sultan Abdullah Ri'ayatuddin Al-Mustafa Billah Shah and Raja Permaisuri Agong Tunku Hajah Azizah Aminah Maimunah Iskandariah at the 2022 National Day Celebration in Dataran Merdeka here on Aug 31.