Description:Thailand's revered King Bhumibol Adulyadej celebrates his 84th birthday. Hundreds of thousands of Thais lined the streets outside the Royal Palace to catch a glimpse of the king. King Bhumibol Adulyadej travelled by van from Siriraj Hospital with Queen Sirikit by his side to the Grand Palace to give his annual speech at the balcony of Chakri Throne Hall. In his speech, King Bhumibol called for unity in light of the recent floods that have devastated the country.(1:05)