China's e-commerce giant Alibaba Group held its grandest annual party celebrating the 18-year-old birthday at the Yellow Dragon Sports Center in Hangzhou, capital city of East China's Zhejiang province, on Friday.

Around 40,000 Alibaba employees from dozens of countries and regions attended the event, where the Group's Executive Chairman Jack Ma performed classic dance of superstar Michael Jackson and displayed sophisticated magic tricks.

eanwhile, entertainers and Alibaba employees played guitar, took out carnival floats parade and other activities.

Jack Ma, chairman of Chinese e-commerce giant Alibaba Group, performs classic dance of Michael Jackson with other business partners at the Alibaba Annual Party celebrating the 18th anniversary of the founding of Chinese e-commerce giant Alibaba Group at the Yellow Dragon Sports Center in Hangzhou city, east China's Zhejiang province, Sept 8, 2017. 

Entertainers and employees perform during the parade at the annual party to mark the 18th anniversary of the founding of Chinese e-commerce giant Alibaba Group at the Yellow Dragon Sports Center in Hangzhou city, east China's Zhejiang province, Sept 8, 2017.