 Song was so popular they named a film after it. Isn't that wild? Young at Heart. Nelson Riddle says to Frank Sinatra, great tune, you'll like it. No one wanted to do Young at Heart. Mr. Sinatra does it. Becomes a million seller back in the day. Here it is. This is one of the other great vocal performances of all time from Francis Albert Sinatra. Nelson Riddle conducting the orchestra. This is from NBC. A man and his music too. 1966. Listen to Mr. S at his very best. Moonlight in Vermont.