Prominent Chinese artist 's work vandalized in Miami gallery . Ai , meanwhile , told CNN that he did n't have `` much reaction '' to the news , but said that he thought that a line should be drawn when it came to damaging public or private property as part of a protest . The art piece was a portrait of the late North Korean leader Kim Jong Il and his wife Ri Sol Ju -- who is also known as Yo-jong -- painted by South Korea's famous pop star Rain, according Ai has previously destroyed vases as part of his work . But he says a line needs to be drawn when work is damaged as part of a protest .
Prominent Chinese artist 's work vandalized in Miami gallery . The art piece was a portrait of the late North Korean leader Kim Jong Il and his wife Ri Sol Ju -- who is also known as Yo-jong -- painted by South Korea's famous pop star Rain, according Ai has previously destroyed vases as part of his work . But he says a line needs to be drawn when work is damaged as part of a protest .