Larry Kramer died yesterday of pneumonia.
The AIDS activist and screenwriter was remembered by Elton as ''a giant of a man who stood up for gay rights like a warrior.''
Hearing of his friend's passing was ''the saddest news'' and the singer appreciated that Larry spoke up when ''gay men's deaths to AIDS were being ignored by the American government.''
Kramer earned an Oscar nomination for his screenplay for 1969's Women in Love and wrote the semi-autobiographical play The Normal Heart in 1985, which later became an HBO movie.
He co-founded the Gay Men's Health Crisis (GMHC) in 1982, and five years later, founded the AIDS Coalition to Unleash Power (ACT UP).
The 84-year-old is survived by his husband, David Webster, whom he wed in 2013.