Roger Waters is a rock star musician, formerly of Pink Floyd (see: http://www.theguardian.com/music/2013/dec/14/pink-floyd-frontman-fury-israel-nazis ).
Roger Waters comparing Israeli treatment of the Palestinians to the 1930s atrocities of Nazi Germany (2013): "The parallels with what went on in the 1930s in Germany are so crushingly obvious”.
Roger Waters in response to Zionist criticism of his comments: “"I do not know Rabbi Boteach, and am not prepared to get into a slanging match with him. I will say this: I have nothing against Jews or Israelis, and I am not antisemitic. I deplore the policies of the Israeli government in the occupied territories and Gaza. They are immoral, inhuman and illegal. I will continue my non-violent protests as long as the government of Israel continues with these policies. If Rabbi Boteach can make a case for the Israel government's policies, I look forward to hearing it. It is difficult to make arguments to defend the Israeli government's policies, so would-be defenders often use a diversionary tactic, they routinely drag the critic into a public arena and accuse them of being an antisemite. The Holocaust was brutal and disgusting beyond our imagination. We must never forget it. We must always remain vigilant. We must never stand by silent and indifferent to the sufferings of others, whatever their race, colour, ethnic background or religion. All human beings deserve the right to live equally under the law." [1].
[1]. Roger Waters quoted in Vanessa Thorpe and Edward Helmore, “”Former Pink Floyd frontman sparks fury by comparing Israelis to Nazis”, Guardian., 15 December 2013”: http://www.theguardian.com/music/2013/dec/14/pink-floyd-frontman-fury-israel-nazis .