Who sings the song?

Donkoi! He called me by 12am Malaysia time to sing me a Birthday song. He sounded very sleepy. I imagined him cuddling himself in the blanket, hearing the soft raindrops as the lullaby and slowly falling asleep. Adorable. On that very moment, I felt happy as he wished me to be through the phone. [Found this photo of us going to Karaoke for the first time on one of the camera flash card. Precious. ]