Is Kim Kardashian forgetting about her youngest child? Why's he hardly on her socials? During Thursday's episode of The Kardashians, the mother of four revealed there's a reason she doesn't post much of 6-year-old son Psalm West online. In the episode, the mother and son duo went to record the little boy's voice for his Angry Birds voice acting gig. Cool! Related: Kim's New Show Bashed As 'Worst TV Drama Ever' - Zero Stars!!! Reflecting on why Psalm sometimes fades to the background, Kim explained: "It is really funny.