Jimmy Kimmel victim of the ultimate prank on wedding day

HE'S known for having a sense of humor, but the joke was certainly on Jimmy Kimmel at his star-studded wedding over the weekend.

The popular talk show host exchanged vows with long-term girlfriend Molly McNeaey on Saturday at the Ojai Valley Inn, in Califoia.

One guest, Gabourey Sidibe, decided to pull a prank on Kimmel, donning a white wedding dress and veil as she arrived at the ceremony.

The 30-year-old Precious star stepped out of a limousine in the flowing gown and even had a friend holding her train as she strolled down the path.

Gabourey Sidibe slipped in to a wedding dress and switched places with the bride-to-be. Picture: Splash

The Late Night With Jimmy Fallon star seemed to love the stunt, laughing as he greeted her at reception.

The 45-year-old tied the knot with his 35-year-old fiance, who is also a writer on his popular chat show.

The bash was attended by a host of Hollywood A-listers including Jennifer Aniston and her fiance Justin Theroux.

Matt Damon was also there with his wife Luciana Bozán Barroso, as was good pal Ben Affleck and his wife Jennifer Gaer, Ellen DeGeneres and wife Portia de Rossi and Kristen Bell and Dax Shepard.

The couple got engaged last August while on holiday in South Africa.

It was Kimmel's second wedding - he wed his first wife and the mother of his two children, Gina Kimmel, in 1988, but they divorced in 2002.

General views of Ojai valley Inn where Jimmy Kimmel married Molly McNeaey. Picture: Splash News