jazz up vs sugarcoat

jazz up

verb
  • To make gaudy and bright. 

  • To give a rhythm or melody reminiscent of jazz. 

sugarcoat

verb
  • To make superficially more attractive; to give a falsely pleasant appearance to. 

  • To coat with sugar. 

How often have the words jazz up and sugarcoat occurred in a corpus of books? (source: Google Ngram Viewer )