The greatest female vocalist in history, Ella Fitzgerald, is performing live in front of thousands of people in Berlin. She's doing what was then a new hit song 'Mack the Knife', when about a minute into it, she completely forgets the words. Watch her brilliantly improvise lyrics for the next 3 minutes and finish the song. This is on one of her greatest albums "Ella Live In Berlin." Here it is with a video added later:
She was the finest female vocalist in history - the greats like Sinatra and Streisand were in complete awe of her. She was a regular guest on my show and here is one of our conversations: