Marilyn Monroe performed Happy Birthday for President John F. Kennedy at a Democratic fundraiser at Madison Square Garden in New York on 19 May 1962, ten days before his forty-fifth birthday. Wearing a skin-tight, crystal-covered dress, she sang the traditional song with added lyrics for Mr President, creating one of the most famous celebrity birthday moments in American history. The performance was widely reported at the time and has been replayed in documentaries, films and online edits ever since, keeping its mix of glamour and political history alive for new audiences.