Something has definitely upset him lol. Pretty much how people in my home feel when I sing

Sounds like what would happen in my house if daddy sang.

Oh, I think it’s great that Daddy sings.

Mwah, bless him !

He didn’t look happy before his Dad started singing.
I don’t think Dad had better give up his day job just yet or he might have a very upset baby if he starts singing at home then

I don’t think he likes the Happy Birthday song!