Pink Floyd's Roger Waters has sprayed Israel's West Bank barrier with graffiti ahead of a concert in an Arab-Jewish village.
Waters was lobbied by Palestinian musicians to switch venues
Waters used red spray paint and a marker pen to write "tear down the wall" on a section of the barrier in Bethlehem, saying "it's craziness".
Israel states it built the barrier to protect citizens from suicide bombers, but Palestinians say it is a land grab.
Waters will play in Neveh Shalom as part of his solo world tour.
"It's a horrific edifice, this thing," Waters said of the barrier.
"I've seen pictures of it, I've heard a lot about it but without being here you can't imagine how extraordinarily oppressive it is and how sad it is to see these people coming through these little holes," he added.
The Pink Floyd bassist was to perform in Tel Aviv in June but switched the venue following pressure from dozens of Palestinian artists.
Neveh Shalom, a mixed Arab-Jewish community near Israel's boundary with the West Bank, is seen as a symbol of peace.
Waters was asked to change his plans in an open letter from musicians who claimed Israel was "oppressing" Palestinians.
Pink Floyd's Another Brick in the Wall is used as a protest song by opponents of Israel's barrier in the West Bank.
Its lyrics have been adapted to read: "We don't need no occupation. We don't need no racist wall."
In an open letter to Waters after the concert was first announced, the Palestinian artists urged him to stay away "at a time when Israel continues unabated with its colonial and apartheid designs to further dispossess, oppress and ultimately ethnically cleanse Palestinians from their homeland".
Waters split acrimoniously from Pink Floyd in 1985 and launched his solo career, but he rejoined the band for the one-off Live 8 concert last summer.