I wasn't aware of this until I saw the JP article.

Apparently the Left are trashing their fellow artists who will be performing in the 40 year anniversary of Gush Etzion.

"Idan Raichel, Ehud Banai, Eti Ankri and the band Hamadregot" are mentioned in the ad, essentially as being ideological traitors who are selling out their performing abilities for money. Personally I thought most performers performed for money.

I guess the Left doesn't like "tainted" money?