Diane Keaton found herself lost for words after dropping the F-Bomb on live television.

The actress – who was promoting her new film, Mad Money, co-starring Katie Holmes – let loose when talking about host Good Morning America host, Diane Sawyer’s, underrated beauty. 

"I honestly do not know why more hasn't been said about how beautiful you are” said Keaton. "Those lips, I love them. I want lips like that. Then I wouldn't have worked on my f---king personality!" 

Keaton then quickly backtracked, saying "Excuse me." 

But it was Sawyer to the rescue. The veteran host quickly played down the hitch, saying: "My mother is going to work on your personality with soap on your mouth."

Watch Diane Keaton drop the F-Bomb on Good Morning America below. Should the network be fined? Leave your thoughts below!