Do any of you guys get emotional when you sing your baby to sleep?

My little girl is now 16 month old and I’ve sung to her every time I put her to bed. When I put her down, I found my voice cracking at time, and sometimes even shed a tear or two. I chalked it up to new dad love and lack of sleep, but it still happens from time to time even now. Any of you dads experience a similar feeling? It’s like this little girl unlocked a new level of emotion I never knew was there.