The Big Four is an all-male Hong Kong musical group formed by Dicky Cheung, Andy Hui, William So, and Edmond Leung in 2009.[1] They released their first self-titled single in 2009, in which the single topped most of Hong Kong's music charts. Their next single, "Unable to Love" (愛莫能助) in 2010, was also topped charts and received consistent airplay for many weeks.
The Big Four held their first concert, The Big Four World Tour, for five days in the Hong Kong Coliseum from March 11 to 15.
The Big Four held their second concert, The Big Four World Tour Live in Hong Kong 2013, for six days in the Hong Kong Coliseum from February 9 to 14.
The first television program hosted by them and named as "Big Four大四喜" was also released in May 2010.