DIANE'S CELEBRITY DIRT - TUESDAY, FEB. 13

*Kate Winslet said she'll sue over a magazine report that she has been seeing a diet doctor in Los Angeles. Kate said it's not true - she never has and never will (She doesn't need a diet doctor, she looks fabulous) Kate is nominated for a Best Actress Oscar and more presenters have been announced for the ceremony on Sunday, February 25. Will, Ferrell, Nicole Kidman, Daniel Craig, Reese Witherspoon, George Clooney, Cameron Diaz and Hugh Jackman will all be presenters (that's a good-looking lineup!)

*The Hollywood round kicks off tonight on American Idol (finally!) Paula Abdul said Gwen Stefani may be one of the celebrity mentors on Idol this season

*Anna Nicole Smith's lovers are coming out of the woodwork. Another guy is claming he may be the daddy of 5-month-old Dannielynn. Personal trainer and chef Alex Denk, who was featured on Anna's reality show on the E channel, said he had a 5-year affair with Anna Nicole. Larry Birkhead, who claims he's the daddy, is heading to the Bahamas today to fight for a DNA test.

*Exes can be friends--even in Hollywood. Vince Vaughn attended Jennifer Aniston's 38th birthday party Saturday at the Beverly Hills home of Jen's best friend, Courteney Cox and he stayed for two hours.

*Sting made the official announcement that The Police will kick off a world tour. More dates will be announced soon, but so far the closest venue is Madison Square Garden in New York on August 1 and 3.

*Congrats to Kevin Costner and his wife, Christine--they are expecting their first child together

*Listen for Diane's Celebrity Dirt weekday mornings at 6:30, 7:30 & 8:30 on 95.1 WAYV