This is Rodion Gazmanov, at 7 years of age. Oleg (his father) wrote the song in 1988.
He sings about his dog Lyusi that runs away. He's sad until she returns again.
As a Defenders Day tribute, the ladies at work gave each male colleague an honorary video and gift. Each video was associated in some way with each man. As you might have guessed, I have a dog named Lucia (Lucy) which I love. So the ladies felt it was a perfect match for me.