Well, the former Simple Life star did most of the dazzling, but no biggie!

Nicole Richie and Joel Madden attended the Grammy Awards after party at the Chateau Marmont last night, and the hot couple put on their Sunday evening best and mingled with stars like Jared Leto, Drake and Alessandra Ambrosio. Ahh, lifestyles of the rich and the famous...

Check out the gallery below to see the rest of the A-list attendees!

Mike "The Situation" Sorrentino and Good Charlotte kicked off an exciting New Year's weekend bash at Chateau Nightclub & Gardens at Paris Las Vegas last night. Reality star and fashionista, Nicole Richie, NBA legend, Julius "Dr. J" Erving, and gorgeous singer, Brandy, also celebrated the end of the year at the stylish nightclub.

Sorrentino is looking forward to getting some rest in 2012. "My New Year's resolution is to take it easy and relax more," said the Jersey Shore hunk.

But, that resolution would have to wait -- Sorrentino was anything but relaxed as he enjoyed celebrating the end of 2011. The MTV star yelled "Happy New Year" to fans and even threw his jewelry into the crowd.

Good Charlotte performed on the rooftop nightclub of Chateau Gardens. Brothers Joel and Benji Madden, as well as the rest of the band, gave fans an incredible once-in-a-lifetime performance under the Eiffel Tower of Paris Las Vegas as they sang "Lifestyles of the Rich and Famous," "Dance Floor Anthem" and more.

Nicole looked on and cheered for her man throughout the performance.

Dang, talk about a creepy venue for a Halloween party!

The Madden brothers rocked Hollywood Cemetery Thursday night for the Vevo Presents Six Feet Deep Halloween Event Powered by DUBSET.

Paris Hilton dressed as Minnie Mouse for the event, while sis Nicky came dressed as her usual fabulous self, as did Jaime King (see her after the jump). Meanwhile, DWTS' Maksim Chmerkovskiy was surrounded by some hot girls whose costume we're pretty sure Nicole Richie would disapprove of ...

Benji and Joel performed a DJ set for the packed house ... guess they had cemetery residents rockin' 'n rollin' in their graves? ...

Nicole Richie and hubby Joel Madden are getting into the Halloween spirit with a family trip to the pumpkin patch in Toluca Lake.

While Nicole held on tight to daughter Harlow, daddy Joel was on Sparrow duty. We can't believe how big their little boy has grown. What a cutie!

See more of the Richie-Madden clan in the gallery below.

Paper Mag

Joel Madden is psyched to tour around Europe except for one major thing - he has to leave his kids behind!

The Good Charlotte frontman shared his personal tour blog with Paper Mag and gave a peek into his rarely-seen world, from photos he sends to his wife Nicole Richie to what the venues look like before the crowds rush in.

But the cutest pics of Joel and Nicole's adorable youngins, 3 1/2-year-old Harlow and 23-month-old Sparrow. He shared the above pic along with the caption:

"Saying goodbye is always hard. On my last day in L.A. before leaving on tour, I always try and take my wife and kids somewhere fun. This was taken on the Ferris Wheel at Santa Monica Pier. Best day ever."

Can you say sweetest dad ever?! See more pics Joel shared after the jump.

Nicole Richie and Joel Madden are offering their 4-bedroom, 4-bath Glendale home for $5950/month.

After settling in to their new Laurel Canyon home in the Hollywood Hills, they've listed their previous digs for rent.

The 4800 square-foot home features two master bedroom suites, a formal dining room with fireplace and a large kitchen with granite countertops. There's a library/study and a three-car garage.

Madden bought the home in 2004 for $1.8 million before he and Nicole purchased their new 5400 square-foot home in 2009 for $1,912,000.

Double the tattoos, double the hotness!

Yesterday we spotted Benji and Joel Madden after a trip to the gym, and we're having a hard time telling the twins apart! Of course, those of you DCMA lovers know that Benji has a little more ink on his lower arms (and a little less hair than Joel), but the scruff on both of the Good Charlotte rockers definitely made us do a double take!

A day of father and daughter bonding!

While Nicole Richie was busy working on her fitness at the gym, dad Joel Madden took daughter Harlow (who turned three last month) to a birthday party yesterday with some of Hollywood's elite!

Also attending the b-day gathering? Gwen Stefani and her boys, as well as Kourtney Kardashian and son Mason. Just another day in the life... of a celebrity, that is.