justification vs song and dance

justification

noun
  • A reason, explanation, or excuse which someone believes provides convincing, morally acceptable support for behavior or for a belief or occurrence. 

  • The forgiveness of sin. 

  • The alignment of text to the left margin (left justification), the right margin (right justification), or both margins (full justification). 

song and dance

noun
  • An excessively elaborate story or excuse used to justify something. 

  • Used other than figuratively or idiomatically: see song, and, dance. 

  • An excessively complex set of instructions. 

  • A display of unnecessary excitement or activity. 

How often have the words justification and song and dance occurred in a corpus of books? (source: Google Ngram Viewer )