On Saturday Kaley Cuoco and fiance Ryan Sweeting went to Marmalade Cafe in the valley, and the actress proudly showed off her 2.5 carat diamond engagement ring after brunch. She also looked pretty stoked to be prancing around with her hunky tennis pro beau on her arm...

The bauble came from Red C Jewels, and according to E! Online, it cost Sweeting a cool $65,000. Not bad considering these two have only been dating for about ... 10 WEEKS! Though sources close to the duo said it's been three months, she was seen with Superman hottie Henry Cavill in the first week of July, so if we're doing the math right, the two got engaged after less than 2 and a half months of dating. Not to get too technical, but you know...

Rachel Zoe is preggers and she doesn't seem like the type of gal who would indulge in cake at a b-day bash, but she was still able to go out and have a blast celebrating her hubby Rodger Berman's birthday on Saturday night.

The celeb stylist and pals, including Jessica Alba, went to The Little Door in Hollywood, and Rach was obviously sober but it looks like Rodger was feelin' pretty frisky at the valet at the end of the night:

Madonna and her stunning daughter Lourdes went to the Kabbalah Centre in New York City on Saturday, and the aging pop icon (sorry, had to!) and her oldest child were dressed in very similar outfits. Madge wore sweatpants, a scarf and a vest while Lola wore Adidas track pants and a vest ... if we didn't know any better, we'd say these two were headed to the gym!

Of course, someone decided to dress up for the occasion -- Madge's youngest daughter Mercy! How cute is she:

Uh oh!

On Friday night Courtney Stodden showed up to Bootsy Bellows in a skintight blue latex dress, and after waiting in line for quite some time she was -- gasp! -- turned away from the club! We're hearing that she was denied entry because of her outfit, and she hopped in a cab van and headed off to another club after the embarrassing incident. Classy!

And speaking of being sophisticated, earlier this week photographer Nick Knight posted the below photo of Court from one of their recent shoots:



She may not be able to get into the trendy clubs, but maybe she has a shot at being a legit model? Or are her colossal breast implants going to get in the way of that?

On Saturday Khloe Kardashian hit the gym near her home, and the reality starlet kept her head down and stayed mum when asked about her drama with estranged hubby Lamar Odom.

On Friday X17online broke the news that Khloe is selling the Tarzana home the couple shared (she'll officially list it on the market in two weeks), so we're wondering where she'll relocate to once she unloads the place. Khloe and Lamar bought the pad in 2009 for $3.95 million, but it's going to be listed for $3 mil, so we're guessing it will sell quickly.

And since we know she's selling their home ... how soon are we going to hear a divorce announcement?

Uh ... we're guessing it's a 128GB Retina display model -- yes, it appears doting mom Katie Holmes dropped $929 on 7-year-old daughter Suri Cruise Saturday at the Apple store in New York City.

Looks like Suri just traded her stuffed animal for a more high-tech toy ...

Justin Timberlake arrived at Los Angeles International Airport on Friday evening for a flight to the U.K., and even though he's not known to be the most warm and fuzzy celeb, he took some time to sign autographs for fans.

JT is performing in London tomorrow night at the Roundhouse, and after that he'll have a month off before his Halloween show at the Bell Centre in Montreal. The 32-year-old singer will then be booked solid November through January with gigs all over North America. We bet wifey Jessica Biel can't wait to have him back at home!

We were shocked when we learned that Zac Efron secretly completely two stints in rehab earlier this year for an alleged addiction to cocaine, but it looks like the 25-year-old actor is getting back on track!

Efron posted the above photo on Instagram on Friday from Machu Picchu, Peru and wrote, "Hey guys! Just returned from an incredible trip to Peru with my dad and wanted to thank you all for your support these past few weeks...means the world to me. Love you guys! - Z" Awww!

Zac had reportedly been doing cocaine for more than 2 years, and several websites report that he was also using Molly and Oxycodone. He initially sought treatment in March for several weeks, but around the time he was shooting Seth Rogen's film Neighbors, he had a relapse. Thankfully Zac has cut his party buddies out of his life, so here's to him getting better!