Footage has emerged of Alibaba CEO Jack Ma singing on stage at a computing conference in southeastern China.<br /><br />The video, filmed in Hangzhou City in northern Zhejiang Province on October 11, shows Jack Ma enthusiastically singing the pop standard "Unchained Melody".<br /><br />It is the second time that the Chinese billionaire has sung at the Computing Conference. <br /><br />Ma reportedly said: "I sing better in bathroom."
