Zhang Yixing (张艺兴; born October 7, 1991), also known as Lay, is a Chinese singer, composer, dancer and actor. He is a member and one of the main dancers of the South Korean-Chinese boy group EXO and its sub-unit EXO-M. On May, 27, 2016 Lay released his first solo single called Monodrama for SM Station project. The track was written by Lay and co composed and arranged with Divine Channel. He first became known after participating in the Chinese TV talent show Star Academy in 2005. In January 2015, Lay was ranked 5th on Baidu's "2014 Top 10 Most Popular Celebrities" list. In September 2015, he released his autobiography titled Standing Firm at 24, which broke several online book records. Lay was formally introduced as a member of EXO on January 17, 2012. The group's first single, "What Is Love" was released on January 30. Their second single, titled "History", was released on March 9 of that year. On March 31, 2012, EXO held a premiere showcase in the Seoul Olympic Stadium, one hundred days after the release of the first trailer for his debut on December 21, 2011. The group held a press conference and showed their performances in the Great Hall of the University of International Business and Economics in Beijing, China on April 1, 2012. In December 2013, S.M. Entertainment released a dance video of the SM Rookies project which featured background music composed by Lay. He also wrote and performed the song "Alone" (One Person) for the soundtrack of Ex Files 2: The Backup Strikes Back, which reached No. 1 on the Baidu Music Chart. Lay released the song "Happy Youth" in November 2015 for the soundtrack of Oh My God, which debuted at No. 8 in the Billboard Chart V. On May, 27, 2016 Lay released his first solo single called Monodrama for SM Station project. The track was written by Lay and co composed and arranged with Divine Channel.