Kim Jae Joong presented his own song he wrote himself on the stage where he had prepared as a stage director. A daughter of Thailand's prime minister attended as an audience member.
As JYJ (Kim Jae Joong, Park Yoo Chun, and Kim Jun Soo) began singing their song entitled "Be My Girl," around 11,000 audience members stood up from their seats as if they had promised to do so in advance. Fans enthusiastically provided a flash mob performance by dancing along to the song together. This happened during the first performance that was held as a part of the "JYJ World Tour Concert 2011" at Bangkok Impact Arena on April 3.
