Mayday or Wu Yue Tian (???), is a Taiwanese rock band that originated in the late 1990s but has since become one of the biggest rock bands to hit Taiwan pop culture. As one of Taiwan's million-selling rock artists, they have received a range of accolades as well as moving records all over the world. They are locally regarded as the best rock band after Beyond, a popular rock band that is based in Hong Kong. Mayday's songs resonate greatly with many Taiwanese youths who can identify with their themes of love, world peace and growing up.