Singer Harshdeep Kaur said Ranveer Singh is a "huge fan" of 'Ik Onkar' prayer from 'Rang De Basanti'. "He called me and said, 'I listen to your voice every morning and on the most important day of my life, I want you there, singing 'Ik Onkar'," recalled Harshdeep. She performed at the couple's wedding at Italy's Lake Como in 2018.