Singles' Day (also known as the Double eleven shopping carnival) is the Chinese largest online shopping day in 11th, Nov., which dates from 11th, Nov. 2009 by the Taobao mall. It takes the advantages of the Chinese single day which is created by Chinese students in university to celebrate their bachelordom. After the event was launched, it obtained unexpected attention so many other e-commerce company tried to imitate this model. However, Taobao mall is still the best beneficiary by its accurate and powerful promotion skills till now. The double eleven shopping day has gained a large number of profit for Taobao since 2009. The sales value on double eleven in 2009 was RMB50 million (￡5.68 million) and the value has increased sharply to RMB35 billion (￡3.97 billion) and the RMB1.5 billion(￡170million) was gained. Here are the volume of transaction from 2009 to 2019 on Taobao mall for November 11:  2009: RMB50 million (￡5.68 million)  2010: RMB900 million (￡102 million)  2011: RMB3.4 billion (￡386 million)  2012: RMB19.1 billion (￡2.17 billion)  2013: RMB35 billion (￡3.97 billion)  2015: RMB91.2 billion  2016: RMB120.7 billion2017: RMB168.2 billion  2018: RMB213.5 billion  2019: RMB268.4 billion  It also shows great power from 2014 to 2018, with the volume of transaction from 213.5 billion in 2018. The continuous successes of Taobao mall double eleven shopping carnival contributes to its varieties of promotion skills and the supportive of quantities of firms. In 2016, Alibaba has introduce the T-mall double eleven party, it invited many popular stars, singers and supermodel who took part in Victoria secret show. The party also invited stars such as Scarlett Johansson, Kobe Bryant and the Beckhams. In the 2017 double eleven party, Jack Ma came out with his new film "Gongshoudao" which means defend the homeland with Kungfu. Now, because of the huge trading volume and income in Singles Day(11/11), Taobao has launched another promotional activity on December 12, which is the similar e-commerce sales day to Singles' Day.