Hollywood Dirt – Bruno Mars to Perform Super Bowl Halftime Show + Simon Cowell Defends Baby Mama on ‘Ellen’ & More

SIMON COWELL TO ELLEN, BABY MAMA NOT A GOLD DIGGER: SIMON COWELL appears on "Ellen" this week, where he discusses his feelings about becoming a first-time dad. The X Factor judge admits he was a bit overwhelmed when he first found out girlfriend Lauren Silverman was expecting a baby.

"Oh my God, this is exciting, and this is going to be a bit of a nightmare for the next few weeks," he said of his reaction news. "It was kind of uncomfortable. You know, the situation." Simon, of course, is referring to the fact that Lauren was still married at the time. "But these things happen and everything is kind of calm now and I'm happy," Cowell added. During the interview, he also defended his baby mama, saying, “There was a lot of stuff said about her, that she trapped me and that she's a gold digger. Absolute nonsense. She's a great girl."

And despite Ellen's best attempts at getting Simon to reveal the sex of the baby, Simon remained coy and tight-lipped ...

Simon addressed BRITNEY SPEARS' turn at the judges table last year as well, admitting, "I kind of booked someone who couldn’t talk."

SNAPSHOTS - SOFIA VERGARA TAKES A TUMBLE: SOFIA VERGARA was out and about in  in Beverly Hills the other day, and wiped out hard while entering the back of a restaurant. (PHOTO) (PHOTO) (PHOTO) (PHOTO)

KHLOE KARDASHIAN KHAOS: KHLOE KARDASHIAN changed her Twitter profile picture from one with her and Lamar to this one of just herself! Do you think this is a bad sign for their marriage?

According to Us Weekly, all the Lamar drama is really getting to her. "She's just exhausted,” a source tells the tab. “I don't think anyone knows where he is at this point." The insider says Khloe "cut (Lamar) off" about a week ago, after confronting him about his drugs, as well as reports of other women. "She said get out, go get help," the source says.

RELATIONSHIP REPORT - LIAM READY TO DUMP MILEY: MILEY CYRUS’ twerking at the MTV VMAs last month may have ruined her relationship. According to Us Magazine, Miley and LIAM HEMSWORTH are "just weeks away from calling it off permanently."

And it seems her raunchy performance at the MTV Video Music Awards was the last straw for Liam. The insider says, "He is over her and wants to make a clean break. No more back and forth." The two are still living together at Miley's L.A. home, but according to another source, "They're not even sleeping in the same room."

Miley's not only losing her boyfriend, the VMA fiasco also supposedly cost her the cover of Vogue.Hollywood News Daily reports that the magazine's editor-in-chief Anna Wintour cancelled the singer's photo shoot because she found her performance "distasteful." Not so, says the self proclaimed rumor busting web site Gossip Cop. Their sources tell them Miley was never scheduled to appear on the cover in the first place.

On a related note ... Miley performed "We Can't Stop" on a German TV show complete with a bunch of little people pretending to be her backup band. (VIDEO)

SNAPSHOTS: MICHAEL DOUGLAS was spotted lugging suitcases out of the New York City apartment he shares with wife CATHERINE ZETA-JONES. It was announced last week they are taking a break from their 13 year marriage. But, hey, at least he's still wearing his wedding ring, so there's that. (PHOTO) (PHOTO)

BRITNEY SPEARS SHOWS US HER UNDERBUM, TWEETS BIKINI PIC: BRITNEY SPEARS has been doing three day a week hour long cardio workouts and daily yoga sessions in preparation for her Las Vegas residency at Planet Hollywood this winter, and yesterday Tweeted a photo of herself in a bikini and platform heels showing off the results of all the hard work. Girl be looking foine!

Less flattering was the tasselled 'underbum' look Brit was photographed sportin' while on the set of her new video. (PHOTO) (PHOTO)

BABY POOP: ZACH GALIFIANAKIS skipped a movie premiere Saturday because his wife of one year went into labor. So far there has been no confirmation as to whether the couple’s first child arrived. If it's a boy will they name him Carlos?

2. The Chew’s DAPHNE OZ, daughter of DR. OZ, has a bun in the oven. The 27-year-old announced she'll be a first-time mom during a taping of the season premiere of the ABC show, which airs today (Monday).

On a related Dr. Oz note ... the TV Dr. dressed in drag for a segment on tomorrow's show. Oz went all Tootsie to try and convince shoe shoppers to choose comfort over fashion.