Nicole Richie has been enjoying some time off at the Taronga Zoo in Sydney, Australia but she's not the only celebrity to have paid a visit to the animals there.

Fall Out Boy rocker, Pete Wentz was seen dropping in on the socialite while she had lunch with some friends.

The pair were photographed chatting and laughing, obviously swapping some of their favourite animal related stories.

Pete and Ashlee Simpson show some love at LAX...