The 37-year-old 'Haven't Met You Yet' crooner welcomed a baby boy named Noah with wife Luisana Lopilato on August 27, and he is already serenading the little tot using his famous vocal chords, reported Contactmusic.
"I sing to him all day and all night. When he's crying with somebody else and I hold him and I sing to him, he just stops. It's really cool," Buble said.
However, the singer said he hasn't been singing his own songs to baby Noah, instead opting for soothing nursery rhymes.