Actor and comedian James Corden is suffering sleepless nights ahead of his debut as host of CBS TV's The Late Late Show.
The 36-year-old Gavin & Stacey star takes over from Craig Ferguson as presenter of the popular US show on March 23.
Speaking to People magazine, Corden said: "There are some sleepless nights... I'm just this guy from a tiny town most Brits haven't even heard of, let alone Americans.
"This is just not something I ever thought would come my way. I feel like I'm a teddy bear in one of those grabber machines at the fair and I'm surrounded by more impressive teddies but for some reason it's grabbed me even though it was going for another. I'm the one going, 'Okay, this will be your life for a bit."
He added: I have no idea how I'll do. But it is not lost on me what a privilege this is. And I think I'm going to love it. I think I'm going to absolutely love it."
