A yellow piano has been unveiled at JW3 in north-west London to honour the hostages, and specifically Alon Ohel, 23, a pianist still being held by Hamas in Gaza.

Ohel is a talented pianist from Lavon in the Galilee and was abducted from Nova festival on October 7. He remains in Hamas captivity.

Musicians are invited to play the piano in solidarity with Ohel and the rest of the hostages. The message, “you are not alone,” sits atop the yellow grand piano and an image of Ohel has been placed next to the instrument.

The piano was unveiled at the Jewish community centre on Sunday with performances from Erran Baron Cohen, Jules Brookes, Avivit Caspi & Eliran Kadussi, among others.

After the concert, attendee Nivi Feldman said: "I cried so much. It was heartbreaking. Alon's aunt and grandma were supposed to have come from Israel, but their flights were cancelled, so they joined us online. We tried to stay positive and send them strength from here to there."

The piano will remain at JW3 until April 19 with various activities scheduled, including singing sessions and concerts.

Organised by the UK Hostages and Missing Families Forum and JW3, organisers said: “The piano, open for public interaction, invites people to play and connect with the message Alon’s family wishes to convey: music transcends borders, reaching out to touch everyone, regardless of religion, nationality, race, age, or gender.

“The Yellow Piano has become a potent symbol of connection, unity, and solidarity.”

The first yellow piano was brought to Hostage Square in Tel Aviv by Ohel’s family, and installations have been introduced in New York, Paris and Amsterdam.