Mark Ruffalo, Susan Sarandon, Javier Bardem, Cynthia Nixon and Julian Casablancas of The Strokes also contributed, some appearing remotely.Macklemore's headline set included tracks such as Thrift Shop, Same Love, Glorious and Can't Hold Us, alongside his pro-Palestine protest song Hind's Hall.Addressing the crowd, the 43-year-old said he had reached a point where staying quiet felt impossible: "It was more uncomfortable for me to stay silent than to say something. I don't believe that saying something is courageous. I believe that saying something is human."The rapper also referenced the unsuccessful effort by 50 members of the House of Lords to persuade...