"Even though Betty was about to be 100, I thought she would live forever," her agent and close friend Jeff Witjas tells PEOPLE in a statement on Friday. "I will miss her terribly and so will the animal world that she loved so much...
@The Tonight Show Starring Jimmy Fallon -Jimmy and Betty White team up with audience members in the game Pyramid on Late Night with Jimmy Fallon (Original Air Date: January 2013).