I've posted before about Frank Sinatra's tendency to sing just slightly before or after the notes of a song, or leaving out syllables of words, or entire words of a lyric, thereby making it swing as nobody else really could.....except for maybe Mel Brooks.
From High Anxiety, here is Brooks singing the title song. Hey, -xiety, indeed:
On a related note, here is Brooks on "The Dick Cavett Show." Endure the first two imitations he does for his Sinatra-worthy, hilarious "America the Beautiful":