While rainbows waved in Washington DC at the start of the gay marriage Supreme Court hearings this week, rainbows of a different sort have been streaking across India, Pakistan, Singapore, and other countries to mark the Holi, the festival of colors. The Hindu tradition celebrates the end of Winter and start of Spring with devotees throwing bright multicolored powder, known as gulal, at each other. Similar to Mardi Gras, social restrictions are loosened during the holiday, meaning Hindus from all classes and both sexes join in the events together. Holi day takes place on the last full moon day of the lunar month Phalguna, which this year was March 27. Click through to find out more about the tradition and see pictures of this year's vibrant Holi celebrations!