Jason Derulo refuses to sleep due to fear of musical competition.

The 20-year-old singer - who has had chart success with all three of his singles - including 'In My Head' - prefers to cat nap throughout the day rather than sleep during the night time.

He said:"My life is pretty exhausting. I slept last night from 3.30am to 6.30am and life was passing me by. I don't sleep that much. When you're sleeping the competition is creeping."

The R'n'B star also revealed that he feels happier now he has a more hands on role with his career.

Speaking to The Daily Record Jason said: "It can get frustrating in the trenches at the back. When you want to be the person delivering the message it can get pretty stressful. It's exciting now. All kinds of things have changed and life has taken a flip. The most exciting thing is seeing thousands of people at a concert. The other stuff is not important to me."