Answer: happybirthday

AnswerCrossword Clue
HAPPYBIRTHDAYParty line?
HAPPYBIRTHDAYFeb. 6 salute, for some
HAPPYBIRTHDAYSong sung many times daily
HAPPYBIRTHDAYJuly 4th message to America
HAPPYBIRTHDAYAnnual refrain