The song "Little Man You've Had A Busy Day" by Perry Como is a lullaby sung by a father to his young son. The lyrics talk about how the little boy has had a tiring and eventful day, and it's time for him to go to sleep. The song starts by describing the evening setting, with the moon in the sky and the evening breeze sighing. The father comforts his son, telling him he knows why he's upset and that it's time for him to hear his lullaby. The little boy is upset because someone took his kiddy-car and Johnny won his marbles. The father reassures his son, promising to get him new marbles and calming him that he's had a busy day and it's time to go to sleep. The lyrics also mention the little boy playing soldier and now it's time to put away his gun because the war is over for tonight. The song ends with the father urging his son to rest and dream, as he's had a busy day. The instrumental bridge provides a soothing and calming melody, and the father softly tells his son to rest his weary little head. Overall, the song conveys a sense of comfort, understanding, and love from a father to his son, comforting him and reassuring him that it's okay to rest after a tiring day. It is a timeless lullaby that captures the sweet and tender moments between a caring parent and their child.