From the Sgt. Pepper’s Lonely Hearts Club Band album cover photo shoot – check out the unused Hitler cutout on the right. Apparently they also left out Jesus Christ.
Wikipedia has more info on the cover, and a separate entry with a complete list of people and objects on the album cover.
CNN has an "updated" version because "Half a century later, some of those original faces feel a little, well, dated. They're also overwhelmingly white and male." Their new list of important people for the cover includes Cesar Chavez, Gloria Steinem, Ruth Bader Ginsburg, Che Guevara, Meryl Streep, Pope Francis, Oprah Winfrey, Angela Merkel, and Angelina Jolie.