Nick Grimshaw has told how he's replaced partying with Sir David Attenborough's animal documentaries since taking over from Chris Moyles on the Radio 1 breakfast show.

The DJ, known for hanging out with celeb mates like Kate Moss, Pixie Geldof and Harry Styles, has to go to bed by 9.30pm to get enough sleep with his new, early-morning starts.

Grimmy, 28, was quoted as saying in The Sun: "I've been trying to watch animal programmes like Blue Planet and other David Attenborough things. Anything stressful like Celebrity Juice or Drugs Live doesn't work. I've tried that.

"I find it insane to go to bed at 9.30pm. I got to bed the other night and Zane Lowe was still on the radio."

Grimmy, who will present a show with One Direction star Harry on Saturday, said: "Harry's actually being bad and hasn't sent me any of the music he wants to play."