Nicole Richie & Joel Madden's Wedding Details

Nicole Richie and Joel Madden have put all their wedding plans in motion, and Radar Online has learned exclusively that the couple plan to marry in early December.

The former Simple Life star, 29, and her rocker fiancee, 31, are set to tie the knot before a star-studded guest list at the Beverly Hill home of Nicole's proud dad, music icon Lionel Richie.

"Christmas has always been about family and faith for Nicole and Joel, so there is not better time of the year for them to wed," an insider told Radar Online.

While the super-secret details of the couple's nuptials have not yet been released, Radar Online has learned that close pal Christina Aguilera and Lindsay Lohan's ex-lover Samantha Ronson are both planning to be in attendance.

The maid of honor will be Nicole's best friend, Masha Gordon, while the best man will be Joel's twin brother, Benji.

Nicole's daughter Harlow will serve as a flower girl.

Father Lionel will walk Nicole, the daughter he adopted, down the aisle, Radar Online is told.

The pair - who confirmed their engagement in February - have also engaged a top Hollywood event planner, the same woman behind the amazing nuptials of Khloe Kardashian, Jennifer Lopez and Aguilera.

Nicole and Joel are planning to invite about 75 family members and close friends to the garden wedding.

The lovebirds have been dating since late 2006 and have two children together - Harlow, 2, and one-year-old Sparrow.

Credit: Radar Online

Nicole Richie & Joel Madden Out To Lunch

Nicole Richie and fiance Joel Madden were spoted out to lunch in Brentwood, CA on November 13, 2010.

Credit: Zimbio

Photos by Photo Agency

Nicole Richie Gets Restraining Order for Harlow

Nicole Richie just got a restraining order against a photographer who she claims has been stalking her child at her preschool ... TMZ has learned.

A photo -- taken by Nicole -- was attached to legal papers filed in support of the restraining order, showing Fabricio Luis Mariotto lurking at Harlow's preschool.

Nicole says in her petition for the restraining order, "[Mariotto] drives erratically around my children and others, yells, screams and attempts to scare us so that he can photograph our reaction. He trespasses on preschool property to photograph the children."

Nicole adds, "He has often left his car in the middle of a busy street just to chase me for a photograph."

Nicole, who did not show up in court but was represented by Tamar Arminak from Mark Geragos' law firm, adds, "His predatory behavior caused and continues to cause severe emotional distress as I fear for the safety of my children."

The temporary restraining order requires Mariotto to stay 100 yards away from Nicole, Harlow, Sparrow and Joel Madden, as well as the preschool.

Credit: TMZ

Christina's Getting "Help Through" Hard Times

Ain't no other man like...Matthew Rutlet?

Weeks after her announced split from husband Jordan Bratman, Christina Aguilera has been seeking comfort in a brand-new guy: Matthew Rutlet, a set assistant whom she met while making her new film Burlesque.

"They've been on a few dates over the last few weeks," a source tells Us Magazine.

Indeed, despite his attempts to hide, Rutler was photographed escorting Aguilera, 29, on a Friday double date at L.A.'s Soho House with Nicole Richie and Joel Madden.

But, cautions the source: "It's not serious. She's not looking to jump into a relationship right now. She has a lot going on with the movie and is focusing on spending as much time as possible with Max."

Wed in 2005, the singer and producer Bratman, 33, have a two-year-old son, Max.

Aguilera and Rutlet befriended one another while making Burlesque, and reconnected after her September separation from Bratman.

"He's been really good for her and is helping her through this diffcult time," the source explains.

Credit: Us Magazine

Nicole Richie And Joel Madden At Fred Segal

Enjoying one another's company during a warm summer day, Nicole Richie and Joel Madden were spotted out shopping in West Hollywood, CA on Sunday afternoon (August 15).

The former "Simple Life" star and her Good Charlotte rocker BF walked hand-in-hand as they popped into Fred Segal to pick up a few new purchases.

Credit: Celebrity Gossip

Nicole Richie Welcomes New Member To Family

On Friday, Nicole Richie took to her Twitter page to announce that she and beau Joel Madden have welcomed a "new addition" to their "growing family": Tabitha Jones Madden, a cat.

Richie, 28, writes on her website that she found Tabitha crying outside her home "one dark and lonely night."

"At first, I thought it was Joel," says Richie, mother to daughter Harlow, 2, and son Sparrow (who turns 1 next month). "But to my surprise, there she was. A sad, and very hungry kitten."

Initially, she thought the cat belonged to her neighbor, so she ignored it.

A week later, the cat returned. "She was so skinny and I could tell she was starving," Richie writes. "I couldn't resist. I fed her, and she was as happy as Benji Madden in a sorority house. It's been 2 months now, so I think it’s safe to call her mine."

Credit: Us Magazine

Nicole Richie & Joel Madden: Beverly Hills Lovers

Socialite designer Nicole Richie took a stroll with her fiancé Good Charlotte lead singer Joel Madden on August 2, 2010 in Beverly Hills, Califirnia.

The happy couple walked hand in hand into a local building with out their children, a day for just the two of them.

Credit: Celebrity Gossip

Christina Aguilera: New Chapter In The New Year

Christina Aguilera, who just turned 30, is ready for a fresh start – and what better way to celebrate than with a big bash for her family and friends?

The singer and Burlesque star threw a party at her Beverly Hills home on New Year's Eve, with 175 guests, including her new man Matt Rutler and celeb pals and newlyweds Nicole Richie and Joel Madden.

Aguilera – who toasted the New Year with a custom bottle of Moët champagne with her name engraved on it – wowed the crowd in a silver sequin Herve Leger dress and jeweled Christian Louboutin heels. "She was so excited!" a guest tells PEOPLE. "She was all smiles all night and really relaxed. She's had a tough year, but she looked genuinely happy."

Indeed, the singer recently confided her anticipation of the event in an interview with PEOPLE. "This party is all about counting down to the new chapter of my life," she said. "I'll be surrounded by friends and family who care and love me to death."

With the party and the kick off of 2011, she's closing the book on a difficult year in which she filed for divorce from her husband Jordan Bratman.

"It's really a time for me to look forward to the next chapter in my life," Aguilera added. "I couldn't think of a better way to bring in the New Year [than with a party]."

The event was also about good old-fashioned fun, and featured a Tarot card reader, a photo booth, three bars, a dance floor and deejay and a sushi bar. After midnight, mini egg McMuffins were served as the first breakfast of 2011.

As for hitting the big 3-0, Aguilera says she has no worries on growing older.

"Everything is exciting right now," she says. "I'm an actress and I'm a single mom. I'm entering my thirties. I'm looking at this as an exciting new chapter in my life."

If the eve of the New Year is anything to go by, she's looking at a good year ahead, according to one guest. "At midnight, she got up on stage and thanked everyone for coming. She told everyone how excited she was about the new year, and how normally New Year's Eve parties are usually a disappointment, but this year she wanted all her friends to have a really fun night. And it was! It was a great party." 

Credit: People

Nicole & Joel Madden Shed The Holiday Pounds

Now that Christmas is over, Nicole Richie and her new hubby Joel Madden are trying to shed those extra holiday pounds. You know what they say ... the couple that sweats together, stays together.

While Joel is proud to show off his hunky body of work, too bad Nicole feels the need to cover up her natural beauty. As for her red workout bag ... doesn't everyone carry a Chanel bag to the gym?

Credit: X17 Online

Nicole Richie and Joel Madden: Hugo's Honeys

Stepping out for breakfast on the west coast, Nicole Richie and Joel Madden were spotted heading to Hugo’s in West Hollywood, CA on Thursday (December 30).

The newlyweds walked separately as they headed inside the restaurant with Joel carrying their adorable daughter, Harlow.

Credit: Celebrity Gossip