Hugh Hefner, founder of Playboy magazine, passed away at the age of 91:

According to a Instagram post by actress and former Playboy model Pamela Anderson, Hefner was using a walker the last time she saw him and he was having trouble hearing:

A makeshift memorial outside of the Playboy Mansion:

Celebrities from around Twitter are starting to pay tribute to the iconic magazine owner:

Hefner’s final tweets asked people to help with hurricane relief in Florida and Texas:

Hefner’s son was in the news a month ago vowing to remak Playboy for his generation: