Each year in the evening of the 5th December, a free huge concert is organized in Sanam Luang, the area in front of Wat Phra Kaew in Bangkok. It is a great honor for singers to be invited to play one song in the concert dedicated to the King. Some of them sing songs composed by the King himself.
In civil administrations, there are specific gatherings for the King's birthday. On this occasion, civil servants wear their most beautiful clothes. Then they listen to Buddhist sermons and to their director's speech.
In year 2007, Thailand has celebrated their King's 80th birthday with festivities and prayers.
Sometimes prisoners sentenced to minor charges are released on the occasion of the King's birthday celebrations.