Gwen Stefani spent her Saturday in last-minute meetings ahead of the release of No Doubt's new single, "Settle Down", which drops July 16.

The reunited band have released this teaser for the first track off the new album, Push and Shove, due out Sept. 25. But the group isn't settling down ... they're back in full force! Here's what the band had to say in a statement: "We are incredibly excited to share the new music with you. Ear candy coming your way! Thank you all so much for your support over the last 25 years. We're really proud of our new album and we hope you love it as much as we do."

He may have gotten a speeding ticket just hours earlier while tearing down the highway in his $110K chrome Fisker Karma electric car, but Justin Bieber didn't appear to be bothered by the police run-in as he got right down to work on a short film shoot in LA, on Friday afternoon.

X17 was the first to spot "The Biebes" being pulled over by the cops for driving at speeds of up to 100 mph through LA's Studio City, but the pop star was all smiles as he showed off his famous dance moves -- and "made out" with an extra! -- for the cameras on the Hollywood set. JB also Tweeted from the shoot: "Still going hard day 1! ‪#AsLongAsYouLoveMe‬ short film."

LA City Councilman Dennis Zine actually called the police on the "Boyfriend" singer, telling KABC-TV: "It was like a rocket ship coming by. When it passed me, it had to be going close to 100 mph. Every time when there was a little space, it would make a lane change, then there were all these cars following."

The police issued Justin a ticket, but have not revealed how fast he was actually going. Watch that speedometer, Biebes!

Girls just wanna have fun!

Hot mamma Courteney Cox looked ready for the red carpet in a sexy black silk dress with a thigh-high slit, as she escorted her adorable daughter Coco, dressed down in jeans and Uggs, to a posh dinner at Nobu in Malibu, on Friday night.

The 48-year-old former Friends star is finalizing her divorce from David Arquette, and has reportedly moved on with Cougar Town co-star Josh Hopkins.

Cox has repeatedly denied that the pair are dating, but they recently returned from a vacation in the Bahamas together, where they shared some pool-side pics via Twitter!

She's just completed a two-month stay in a rehabilitation center, and Brooke Mueller looks happy, healthy and ready to make a fresh start!

Charlie Sheen's ex-wife channeled her inner hippie in a leather vest, matching hat, oversized belt and layers of turquoise as she stepped out for lunch in Beverly Hills, on Friday afternoon.

Mueller entered rehab in May to seek treatment for substance abuse, but now the mother-of-two is focused on her sobriety, and also has a sober living companion that will be staying with her to ensure that she sticks to her healthy new plan.

Brooke even teared-up at the mention of ex Charlie Sheen's assistant, Rick Calamaro, who died this week. She calls it a "warning" for those with substance abuse issues ...

Taking the opportunity to show off his sexy biceps, Russell Crowe did all the heavy lifting as he treated his hottie wife Danielle Spencer to a luxurious shopping trip in Beverly Hills, on Friday afternoon.

The Oscar winner has been keeping fit thanks to a grueling exercise regime, which he's been sharing with fans via Twitter to help inspire others to get fit along with him. The Robin Hood star even Tweeted after his shopping trip: "last 2 days w/o 45-60mins soccer w/- boys,fitting in laps of pool between throwing them around and massaging the wife( great for the arms)."

Meanwhile the New Zeland-born actor's wife is also in flawless shape after just competing on Dancing with the Stars in Australia, and she was the runner-up with partner Damian Whitewood!

No doubt the Crowes are a fit and fabulous couple!

Kelly Clarkson has a boo-boo!

The original American Idol winner injured her foot so bad, she was forced to use a wheelchair on Tuesday, sharing a Twitpic with the caption: "Sprained my foot and have a hairline fracture but the show must go on people ha!"

Thankfully, the singer appeared to be in good spirits as she hobbled along on her crutches while stopping to pick out baubles at jewelry store Alisa Michelle in LA, on Friday afternoon.

Clarkson is currently serving as a judge and mentor on the singing competition show Duets, but the injury didn't stop her from appearing on the show, sitting for hair and make-up in a wheelchair while holding crutches.

The 30-year-old Grammy winner hasn't revealed what caused the injuries, but she's clearly not letting it get her down!

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Rumer Willis looked a little glum as she shopped for hair products in Beverly Hills on Friday afternoon, and for good reason!

The eldest daughter of Bruce Willis and Demi Moore has lost her new puppy, Indy Blue, just two months after adopting the rescue pooch; a 4-month-old Manchester terrier-beagle mix.

Fortunately Willis had her pup microchipped, which will up the chances of locating the missing pup, but the aspiring singer put up posters in her LA neighborhood hoping someone may have seen the little guy.

Indy was actually part of a litter that had been abandoned outside a Wal-Mart, and Miley Cyrus adopted one if his sisters, Mary Jane.

Rumer hasn't had any luck locating the missing dog yet, but we're keeping our fingers crossed!

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It's not hard to see why Amanda Seyfried has such a flawless figure; she takes every opportunity to get active outside with her darling pet pooch Finn!

The Lovelace star looked fit and fabulous in spandex pants and a casual tee as she accompanied Dexter star Jennifer Carpenter and a pal on a hike in the Hollywood Hills, on Friday afternoon.

Despite the fact that Seyfriend is one of Hollywood's hottest starts, she's still totally down to earth and still makes sure to pick up after her dog. Love her!