85-year-old Yaffa Adar is a fan of opera singer Andrea Bocelli and hummed his music throughout the 49 days she was held hostage by Hamas. Her story reached the Italian tenor who wrote to her of his admiration and offered to fly her to one of his shows.

https://www.timesofisrael.com/freed-hostage-yaffa-adar-gets-concert-invite-from-andrea-bocelli/