Anti-government protesters sing the national anthem outside the Grand Palace on Coronation Day in BangkokAnti-government protest leader Suthep Thaugsuban waves to his supporters as he marches near the Grand Palace on Coronation Day in Bangkok)Anti-government protesters light candles outside the Grand Palace on Coronation Day in BangkokAnti-government protesters hold pictures of Thailand's King Bhumibol Adulyadej and Queen Sirikit as they gather outside the Grand Palace on Coronation Day in Bangkok