Jay Chou gave Zai Zai a tight slap when 9 Pepsi stars were filming an advertisment.Jay was unhappi that Zai Zai insulted him that his pose was damn ugly and walk forward and slap him,this move had scare the stars around including Aaron Kwok and Sammi...after finishing shooting, Zai Zai went forward to confront Jay but he was stop by bao long...and Jay like Ah Beng like tt slammed a chair...nv noe that Jay and Zai Zai can be such a good friends that they ganged up to put up this show!-_-