It’s not every day that a supermodel takes on a rock legend. But Bar Refaeli laid down a challenge to Roger Waters after the veteran musician published an open letter to his colleagues urging them to boycott Israel.

In a letter published this week, Waters, the former frontman of the progressive rock band Pink Floyd said: “I write to you now, my brothers and sisters in the family of Rock and Roll, to ask you to join with me, and thousands of other artists around the world, to declare a cultural boycott on Israel.”

Once upon a time, Refaeli was clearly a big Waters fan. Back in July 2011, after attending a concert in Paris, Refaeli tweeted the following after she spotted her image in a Waters show.

“Crazy thing… Went to the Roger Waters show in Paris, and saw a pic of myself on the wall!!! #respect!!! I’m honored.”

Now, following Waters’ clear pro-boycott stance and active efforts on behalf of the Boycott, Divestment and Sanctions (BDS) movement, she’s changed her tune, and wants her image out of Waters’ show. She showed her displeasure by tweeting in Hebrew on Wednesday:

“Roger Waters, you better take my picture off of the video art at your shows. If you’re boycotting – go all the way.”

Refaeli won praise from a pro-Israel blog for her bold tweet taking on Waters, but was castigated for her choice of language.

“She tweeted the message in Hebrew! Hardly an effective message for the English-speaking Waters.

Posturing for her Israeli fans, or just ‘being blonde?’”