Robin Thicke thinks Santa Claus causes "stress" for parents.
The 'Blurred Lines' singer - who has 14-year-old Julian with ex-wife Paula Patton and Mia, six, Lola, five, and Luca, three, with fiancee April Love Geary - feels it is hard to know the right time to discuss whether Father Christmas really exists and brings presents to all the houses around the world, and admitted he "coaches" his kids to "believe".