TEL AVIV, Israel — On a warm night at the plaza in front of the Tel Aviv Museum of Art, hundreds wave Israeli flags and posters of loved ones in captivity as American singer-songwriter John Ondrasik performs his song OK, a stirring requiem he composed after October 7.

This is Hostages Square, a gathering place for family members, friends and supporters of the 133 hostages still languishing in Gaza, and a scene of weekly rallies. Ondrasik, who performs as Five for Fighting, was visiting Israel for the first time in April with his son as a show of solidarity.