Jennifer Aniston a "beautiful character"

Jennifer Aniston is a "beautiful character", says British TV chef Jamie Oliver - who teams up with the former 'Friends' actress for Oprah's Big Give.

Aniston, 39, is to be a featured guest on the show, teaming up with Oliver to help 10 people give back to others, and the chef - known for his hit television series 'Jamie's School Dinners' in the UK, could not imagine working with anyone else for the feel-good show.

"Jennifer’s a friend of mine, she’s a beautiful, beautiful character," he tells OK! magazine. "She was perfect to be a part of Oprah’s Big Give because that’s her personality — she’s a beautiful, giving person. It was lovely to have her involved, to have a friend be involved in the same show as me, and she comes along to one of the shows to pat the winners on the back."

The pair have managed to strike up a great friendship since Aniston invited Jamie, 32, to cook for her then-husband Brad Pitt's birthday party after seeing him appear on TV. And Jamie adds that with Jennifer, what you see is what you get. "She’s the same in real life as everyone thinks she is on telly, you know?".

Oprah's Big Give premieres on March 2, but the details of Jen and Jamie's episode has not yet been revealed.