Brad Pitt and Angelina Jolie like to ''have a laugh'' with Jamie Oliver.

The British chef - who has four children, Poppy, 10, Daisy, nine, Petal, three and Buddy, two, with wife Jules Oliver - admits he and the Hollywood legends get together on a casual basis and when they do they enjoy having all their kids play together.

Brad Pitt has hired Jamie Oliver to cook his Christmas dinner.

The 'Killing Them Softly' actor has been friends with the British chef for years and although Jamie has tried to teach Brad how to cook, the Hollywood hunk has given up and asked his pal to come to his rented London home on Christmas Day (25.12.12) to make dinner for him, fiancee Angelina Jolie and their six children.

Angelina Jolie and Brad Pitt have invited Jamie Oliver and George Clooney to a party at their Surrey home.

The Hollywood couple - who are engaged and have six children together - have asked the chef as well as his wife Jools Oliver and the actor and current girlfriend Stacy Keibler to join them for the bash.