R&B singer Jason Derulo's father refuses to give up his day job despite his famous son offering to help pay his parents' bills.

The Whatcha Say hitmaker, who shot to fame in 2009, decided to give back to his beloved parents as soon as he could afford to and treated them each to new cars.

His chart success has also allowed his mother to retire early, but the 23-year-old's dad Joel insists on staying employed.

Derulo tells Wenn, "My mum has a new car; my dad has a new car. My mum doesn't work (anymore), she's retired; my dad still loves to go to work so gets up every morning and goes to work, that's what he loves to do..."