On Saturday Khloe Kardashian hit the gym near her Tarzana home, and she looked rather down in the dumps. Perhaps estranged hubby Lamar Odom's flirt-fest with a bunch of girls the other night has her thinking about nixing their alleged reconciliation?

Despite telling Us Magazine that he and Khloe were “wonderful” and “unbreakable," on Wednesday, later that night partied it up at Beacher's Madhouse and was anything but on his best behavior! An eyewitness tells Life & Style Lamar "was chugging Dom Perignon" before leaving with his entourage and flirting with three ladies in the lobby.

A source added to TMZ that the fallen NBA star was "very drunk" and "hanging at the bar doing shots of Patron." The site reports that Lamar stayed until closing at 2am and at 2:30am "he was in the valet area talking about where to go for the after party."

Khloe can't be happy about that!

Olivia Wilde and Jason Sudeikis caught the Lakers game on Friday night at the Staples Center in Los Angeles, and we're glad one of them was in the mood to smile for photographers!

Just last week the couple confirmed that they are expecting their first child together. It's definitely her first kid, but the jury is still out on whether Jason fathered ex-girlfriend January Jones' adorable little boy Xander...

From the smile on her perfectly painted lips to the flawless manicure, Gwen Stefani always looks like a million bucks!

The pregnant singer ran errands in Los Angeles on Friday afternoon, and she flashed X17 photographers her beautiful smile before popping back in to her car and heading home. Gwen hasn't revealed when she's due or what the gender of her third child is, but here's to hoping it's a little girl! If Gwen and hubby Gavin Rossdale have a daughter, she might even end up being a better dressed celebritot than Harper Beckham...

Oh, what we wouldn't give to raid Hilary Duff's closet ... and as if we weren't already a huge fan of the Duffster, we love that she's always in a good mood when she sees us!

On Friday X17 photographers snapped the former Disney star out and about in Santa Monica, and even though she wasn't wearing anything colorful, she was able to brighten our day with her megawatt smile.

Duff was busy this week with Halloween festivities, and in between trick or treating with her one-and-a-half-year-old and going to some more adult costume parties, she dressed as mouse and later as a cat. Meanwhile, hubby Mike Comrie and their darling son Luca teamed up and dressed as firemen:

Miley Cyrus and Benji Madden were "making out" at the Bootsy Bellows Halloween party on Thursday night, according to a source for The Daily Mail.

"They seemed really into each other," an eyewitness revealed. "Soon they were flirting and talking very closely. Then they shared a kiss. They left Bootsy Bellows together around 1 am. They tried to be discreet by sharing a car with some other friends but it was clear they were leaving as a couple."

What's even weirder is that Miley hung out with Benji's ex Paris Hilton at another Halloween party earlier in the evening, and then we also remembered that before Eiza Gonzalez was Liam Hemsworth's rebound fling, she was seen partying it up with Benji back in September! What tangled webs we weave...

Just a few days after the Jonas Brothers band confirmed that they were done, Nick Jonas enjoyed a night out at the Sunset Marquis in West Hollywood. Don't worry, he's not pulling a Kylie Jenner -- as you may recall, the youngest bro in the band turned 21 back in September.

Nick has been working on his own music, and earlier this week the boys sat down with Good Morning America to explain why the band split up. "We're family first and that's always been our main priority and so honesty within what we do as a group was really important," Nick said. "I came to the table with the guys…and shared my heart with them and my feelings. I said, 'Look, I feel like we've had some complications within the group for a long time [and] without addressing them I think this train will fall off the tracks ... It was a tough conversation. It was the first time we really had that real conversation."

In other news, before heading out on the town, Nick was stranded at Los Angeles International airport for a bit after a fatal shooting at Terminal 3. "Landed at LAX at to the news that there was a shooting in the terminal my plane was supposed to deplane at," he tweeted. "Currently waiting on the plane in a remote parking area. I am safe. Praying for the victims of this shooting." Glad he's ok ... but our hearts go out to those affected by the senseless act of violence.

Halloween was a mix of creepy and cute for the Richie-Madden clan!

Nicole Richie tweeted this adorable shot of her hubby and kids dressed as the Addams family, ad we have to say, she nailed it as Morticia Addams!

Harlow was adorable as Wednesday, while Joel Madden dressed up as Gomez and Sparrow went as Pugsley. The ladies had a little bit of an edge over the boys (c'mon Benji, go with a striped suit next time!), but all together it worked pretty well.

Click the gallery below for more celeb Halloween costumes!

Just hours after announcing that he was postponing his Yeezus tour, we caught Kanye West gabbing away on his phone before hopping into his black Lamborghini in Hollywood. Hopefully he's chatting with someone who can fix this mess! Or maybe he was on a call with his lawyer? On Thursday it was reported that Kanye and fiance Kim Kardashian are suing YouTube co-founder Chad Hurley for allegedly leaking their proposal video.

Anyway, Kanye pushed back concerts in Vancouver, Denver and Minneapolis after a truck carrying some of his custom stage equipment crashed and damaged the gear on Friday. His record label said in a statement that the destruction has made it "impossible to put on the show and The Yeezus Tour will be postponed until these essential pieces can be reengineered and refabricated."

While his tour may be in shambles at the moment, at least he's backing his own brand! We later spotted the rapper carrying one of his own Yeezus confederate flag jackets:



Guess he really doesn't see what's so controversial about this!