Jimmy Kimmel is a married man! A little less than a year after proposing to longtime love Molly McNearney, the ABC late-night TV host said "I do" in a star-studded wedding in Ojai, Calif., on Saturday, July 13, sources confirm to Us Weekly.

The happy event, held at the Ojai Valley Inn, was attended by several of the couple's A-list pals, including Ben Affleck and wife Jennifer Garner, Matt Damon and wife Luciana, Jennifer Aniston and fiance Justin Theroux, Ellen DeGeneres and wife Portia De Rossi, and Emily Blunt and husband John Krasinski. All told, there were around 300 guests, one insider shared. (Kimmel, 45, had previously told Us Weekly it would be "mostly a family affair.")

McNearney, a co-head writer on Jimmy Kimmel Live, walked down the aisle with her father. And at the end of the ceremony, she and her new husband exited to George Harrison's "My Sweet Lord." 

"They are a really great couple," a source told Us. "Everyone is very happy for them."

The wedding itself was just one event in Kimmel and McNearney's planned weekend-long celebration. The couple have also scheduled a post-wedding brunch for Sunday, July 14. And on Friday, July 12, they were joined by Affleck, Damon, Krasinski, Blunt, Blunt's sister Felicity and husband Stanley Tucci, Howard Stern, Johnny Knoxville, and others at the rehearsal dinner. Guests were taken via trolley to a big barn near the inn, where the bride and groom -- both dressed in all white -- waited to greet them.

"Jimmy and Molly seemed ecstatic and so happy to see family and friends," an eyewitness told Us. "Everyone stood around hugging and laughing over cocktails."

Dating since 2009, the couple got engaged while on vacation in South Africa's Kruger National Forest last August. This is the first marriage for McNearney and the second for Kimmel. He was previously wed for 14 years to first wife Gina, the mother of his two children; they divorced in 2002.