The undated screen capture image shows Chun Wai Chan, a principal dancer with Houston Ballet, dancing during an online class amid COVID-19 pandemic in Houston, the United States. At 11 a.m. sharp, Chun Wai Chan turns on his camera and begins to dance with music while live-streaming an online class. At the other end of the Internet, hundreds of people across the world follow him, stretching and jumping. Since March, the one-hour free ballet class from Monday to Friday has become Chun Wai Chan's "new job." As a principal dancer with Houston Ballet, Chun Wai Chan has to stay at home like others in the country to help slow the spread of COVID-19. (Xinhua)