The anti-Israel composer and singer has publicly tried to bring pressure on acts not to perform at the contest, which will be held next month in Tel Aviv.
The anti-boycott letter, which was also signed by Gene Simmons of rock band Kiss and the actor Simon Callow, also described the cultural boycott movement as “an affront to both Palestinians and Israelis who are working to advance peace through compromise, exchange, and mutual recognition.
“While we all may have differing opinions on the Israeli-Palestinian conflict and the best path to peace, we all agree that a cultural boycott is not the answer."
The letter comes after comments from Netta, the Israeli winner of last year’s contest, who also opposes a boycott.
@Being on the same stage, no matter what your religion or ethnicity or colour, from all these countries, from all these cultures, this is a festival of light," she said, at the annual meeting of the Foreign Press Association in Jerusalem.
"For people to boycott light is spreading darkness. It's the exact opposite thing."
