Jay Z, who has now dropped the hyphen from his name, was spotted leaving lunch at Gjelina in Venice on Sunday after visiting with Kanye West, Kim Kardashian and their six-week-old daughter North West at Kris Jenner's Calabasas pad.

And apparently this isn't the first time the rapper stopped by say hi to little North West, who has yet to make her first public appearance. Earlier this month Jay and wife Beyonce Knowles were reportedly among the first non-family members to see the little girl, and they spoiled her with thousands of dollars worth of gifts.

Baby Nori made out like a bandit with personalized Christian Dior baby booties and a three-piece sterling silver Elsa Peretti Padova, and they apparently gifted her with a $14,000 Swarovski crystal-studded high chair at her shower last month.

Robert Pattinson kept his head down as cameras snapped him leaving the Jay Z/Justin Timberlake concert Sunday night in LA, with a Aussie chanteuse Sia, 37.

The two hid their faces but see-a bit too much of Sia -- her headlights were on full beam! The braless babe wore a long, black kaftan with leggings and black high-tops while Rob sported his usual baseball cap with a black leather jacket and jeans.

Where was Kristen Stewart? Where was Riley Keough? Could Rob actually be getting it on with Sia???

Is Miley trying to tell us something with her cover of "On My Own?"

The Twerkalicious country/hip-hop/pop star-actress posted this acoustic cover of the Les Miserable Broadway hit on YouTube this weekend, sans instrumentals, just that distinctive Miley voice carrying through the minute-and-a-half rendition.

Meanwhile, Miley's more commercially-popular track, "We Can't Stop," peaked at No. 2 on the Billboard Hot 100 and the video garnered more than 10.7 million online views the first 24 hours it was on Vevo.

Looks like Miley can do it all! But will she do it without Liam? On her own?

Britney Spears and boyfriend David Lucado brought sons Sean Preston and Jayden James to the Smurfs 2 premiere Sunday, while Katy Perry walked the blue carpet with her grandmother and without boyfriend John Mayer.

Britney's on the soundtrack, with her single, "Ooh La La" and Perry voices the character Smurfette.

Brit was stunning in a Herve Leger bandage dress and Saint Laurent heels, while Katy rocked a Tadashi Shoji dress and Pedro Garcia heels. The two are, apparently, becoming BFF's, as they Tweeted at each other after the screening, "So great to see you Smurfette @katyperry! Can't wait for our Vegas date...," Britney posted, along with a picture of the two of them. Katy replied, "OMG!!!!! I CAN'T I'M CRYING."

Other celeb-kids who turned out for the premiere included Dannielynn Birkhead with dad Larry. She's looking more and more like mom Anna Nicole Smith every day! Neil Patrick harris and partner David Burtka brought their twins Harper Grace and Gideon Scott.

Smurfs 2 opens this Wednesday.

Last night, Justin Bieber grabbed his favorite wingman Jaden Smith as the two made tracks towards Selena Gomez's 21st birthday party at the Revolve Beach House in Malibu.

The pop star's leopard-print sports car was parked outside as he made his way in to surprise the guest of honor while he left Jaden to fend for himself and the big bash.

Could this mean a permanent reunion between the two?

Pregnancy isn't slowing her down!

On Saturday, Halle Berry and her baby bump made their way to Bristol Farms in Beverly Hills to do some light grocery shopping.

The 46-year-old actress, who looked lovely in a flowing white dress, was accompanied by husband Olivier Martinez for the quick trip.

She's certainly wearing her second pregnancy well!

Fergie and husband Josh Duhamel got a head start to their church duties as the cute couple made their way to a Saturday service in Brentwood.

The pregnant Black Eyed Peas singer, who's due in September, opted to forego her usual Sunday service to make time for her baby shower on Sunday. She also decided to ditch the traditional maternity wear for another look with her blue satin suit.

We bet these first-time parents just can't wait for their baby boy to arrive!

It's pretty apparent that Heidi Klum loves spending as much time with her family and boyfriend more than anything else!

The Project Runway host has primarily made her weekends especially for her kids and boyfriend Martin Kristen, and yesterday was no different as the happy bunch took a trip to Starbucks for some sweets before doing some shopping at a Whole Foods in Brentwood.

They just look like the picture perfect bunch!