Video: Thousands celebrate Thai king's birthday Thousands of Thais in yellow shirts packed the area surrounding Bangkok's Anantasamakom Throne Hall to mark the 85th birthday of King Bhumipol Adulyadej. Yellow is the colour for Monday, the day on which the monarch was born. Local media reports estimated that around 200,000 people turned out in the capital, Bangkok. Some well-wishers had camped out overnight to get a glimpse of the monarch and many lined the route from Siriraj hospital where the king has lived since September 2009 because of illness. There were chants of: "Long live the King" as he appeared on the Throne Hall balcony.