JENNIFER Aniston will be at the Oscars I can exclusively reveal that Ms. Aniston will present an award on Sunday night with funnyman Jack Black. Whether she and boyfriend John Mayer walk the red carpet together remains a mystery. Mayer told Popsugar earlier this week that he planned to attend the awards, which take place at the Kodak Theater in Hollywood. "It's my first Oscars," the singer said. "And it's my first being an Oscar boyfriend." The big night could also mean the first run-in Aniston has ever had with Brad Pitt and Angelina Jolie, both of whom are nominees. Aniston's rep did not immediately comment. Aniston was not with Mayer tonight, at least not while she enjoyed dinner with three friends during another Grey Goose night at Cecconi's restaurant in West Hollywood. A table away from the former Friends star was Gwen Stefani and hubby Gavin Rossdale with a gaggle of pals, including American Idol creator Simon Fuller. In the back of the eatery, Mariah Carey and Nick Cannon joined a large group of people, including Laurence Fishburne and NBC honcho Ben Silverman. - E Online Among the other restaurant-goers were Elle Macpherson, Bradley Cooper, Fisher Stevens, Elizabeth Banks, Jason Bateman, fashion designer Ozwald Boateng and Los Angeles Mayor Antonio Villaraigosa. - E Online