Scottish singer-songwriter and political activist Annie Lennox found the perfect opportunity to address the Israel-Gaza war during the Grammys on Sunday night — while paying tribute to equally outspoken artist Sinéad O'Connor, who died on July 26, 2023. At the end of an extra somber rendition of O'Connor's beloved song, "Nothing Compares 2 U," off of her 1990 album "I …