jazz up vs pep up

jazz up and pep up both are verbs.

Word	Noun	Adjective	Verb	Adverb
jazz up	No	No	Yes	No
pep up	No	No	Yes	No

As verbs, jazz up and pep up are synonyms defined as:

Other synonyms of jazz up include ginger up, juice up.

jazz up (verb)	pep up (verb)
make more interesting or lively	make more interesting or lively
	spur on or encourage especially by cheers and shouts