be there vs pop up

be there

verb
  • Used other than figuratively or idiomatically: see be, there. 

  • To be available to provide comfort and support for someone, especially in a period of difficulty. 

pop up

verb
  • To come up with a "pop" sound. 

  • To display as an alert, advertisement, etc. that suddenly appears on screen. 

  • To appear without warning. 

  • (Of an alert, advertisement, etc.) To suddenly appear onscreen. 

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