It was really great to see the competition of BMX stunts. It was held in Rajamangala National Stadium by Extreme Sports Association of Thailand. You may want to watch those videos.
Here is a video of dancing girls which was also there.
There were crowded with many people around the area of Sanam Luang and Khaosan Road during the Songkran water festival 2007. Here you can watch the videos by clicking on thumbnails.