Jennifer Lopez Celebrates Husband Marc's Birthday In Style

On the same day that she completed the Nautica Malibu Triathlon in Malibu, CA, a surprisingly energized and glammed-up Jennifer Lopez attended the 40th birthday party of her hubby Marc Anthony in New York City.

Looking stunning as usual, Jennifer wore an elegant white gown with an empire-waist. The superstar turned super-athlete walked hand-in-hand with her husband-singer Marc, who looked sophisticated with a three-piece suit and traditional bow-tie.

The couple that bi-coastally supports one another, stays together!

Also at the star-studded event, actress Brooke Shields and her husband Chris Henchy, actress Leah Remini, and burlesque performer Dita Von Teese!

Click here to read all about Jennifer's finish-line triumph!

Jennifer Lopez Completes First Triathlon

Jennifer Lopez was one of several celebrities to complete a triathlon in Malibu, CA today, showing off her shapely post-pregnancy body just seven months after giving birth to twins.

The singer, 39, threw her arms in the air and smiled to onlookers as she crossed the finish line of the grueling event, which involves swimming, running and biking. People magazine reports she finished the race in 2 hours, 23 minutes and 28 seconds. On the sidelines to offer support were fans and Jennifer's husband Marc Anthony, who kissed his wife between the biking and running portions of the race.

After finishing, Lopez joined family and friends in a VIP area where actors Matthew McConaughey and Jon Cryer were also spotted. McConaughey was with his girlfriend Camila Alves and their newborn son Levi.

J.Lo's triathlon performance comes just days after "Project Runway" host Heidi Klum revealed that the singing sensation had pulled out of a planned appearance on the season finale of the fashion designers show due to a foot injury.

The New York Daily News reports that Lopez and her family were quickly leaving L.A. so they could focus on a 40th birthday bash being held for Marc Sunday night at a New York hotel.

Jennifer Lopez Finishes Triathlon in 2 1/2 Hours

Jennifer Lopez completed the Nautica Malibu Triathlon in 2 hours, 23 minutes and 38.8 seconds
on Sunday.

The singer, 39, pumped her arms in the air and smiled broadly as she crossed the finish line of the swimming-running-biking event.

"Thank you guys so much," she told the crowd. "This is an amazing day.

"I feel really great and so glad I finished and that I made it out of the water but more amazing than that, I feel really great that we raised $127,000 for the Children's Hospital [of Los Angeles] and hopefully it'll go to good use," Lopez added.

Husband Marc Anthony was on the sidelines being supportive. The couple kissed between the biking and running portions of the race.

After finishing, Lopez joined her family and Matthew McConaughey, who came in before her, in the VIP area. McConaughey was accompanied by his girlfriend Camila Alves and their newborn son Levi.

McConaughey's race time was 1 hour, 30 minutes and 44.7 seconds.

Lopez' participation raised $127,000 for the Children's Hospital of L.A. and the entire event raised $950,000.

Lopez and Anthony are expected to return to NYC after the event to host his 40th birthday bash Sunday night.

Fans and fellow participants were seen cheering on Lopez and giving her high-fives.

See Jennifer Lopez's post-baby bod.

Lopez was inspired to run a triathlon while eight months pregnant with twins Max and Emme, who were born in February.

"I was beached like a whale," Lopez — Self magazine's Most Inspiring Woman of 2008 — said on ABC's Good Morning America last month.

"I was watching TV, and I saw a triathlon and I said, 'You know what? I think I could do that, that would be great for me to do. Maybe I'll do it this year,'" she explained.

"Swimming is a killer," Lopez admitted. "I'm not going to lie."

She also joked that she is determined to finish the race even if she "has to crawl across that finish line."

Jennifer Lopez Completes First Triathlon

Jennifer Lopez completed her first triathlon on Sunday, finishing the Nautica Malibu Triathlon in 2 hours, 23 minutes and 38 seconds, according to Us Weekly.

The star was cheered on by husband Marc Anthony, who reportedly waited on the sidelines and kissed his wife in between the biking and running portions of the event.

But she didn’t complete the three-part race just for the physical challenge.

“This is an amazing day,” Jennifer told the crowd after, according to Us. “I feel really great and so glad I finished and that I made it out of the water, but more amazing than that, I feel really great that we raised $127,000 for the Children’s hospital [of Los Angeles] and hopefully it’ll go to good use.”

The event as a whole reportedly earned $950,000 for charity.

After the race, Jennifer joined Marc and friends Matthew McConaughey and his family, girlfriend Camila and new son Levi, in the VIP area.

Matthew competed as well, reportedly finishing the race in 1 hour, 30 minutes and 44.7 seconds.

J.Lo competed despite a foot injury which forced her to cancel her appearance as guest judge on the “Project Runway” finale.

“She’s determined to get through the race,” the star’s rep told Access Hollywood on Friday.

J.Lo, new mom to twins Max and Emme, told “Good Morning America” in August that the idea for taking on the heavy-duty athletic competition was inspired by her third trimester.

“It actually came up when I was about eight months pregnant, and I was beached… like a whale, and I was watching TV and I saw a triathlon and I said, ‘You know what? I think I could do that. That would be great for me to do, maybe I’ll do it this year,’” she told “GMA.” “Everybody told me I was crazy.”

Jennifer out from Project Runway Finalist Show

Jennifer Lopez was supposed to be the guest judge on the season finale of the Project Runway finalists' show in Bryant Park during Fashion Week in NYC Friday morning. However famous fashion designer and model Heidi Klum announced "Jennifer Lopez was going to be our guest judge, but she canceled yesterday due to a foot injury," However despite of Heidi's comments, Gunnar Petersen, Jennifer's trainer, denied any kind of mishap "No injuries, all good." she told OK!

Guess who replaced Jennifer?None other than fashion guru Tim Gunn! "I'm happy to fill in last minute and will be impartial and unbiased to the designers," said Tim.

So did Jennifer really have some problem or she was kicked out of show at the last moment? That remains unrevealed.

Better Luck next time Jennifer!

Jennifer Lopez Cancels on Project Runway Judging

As they say, the show must go on.

The producers of Project Runway had planned to introduce another surprise judge for this season’s upcoming. And thanks to an interesting twist of fate, they now will.

As rumored, fashionista Jennifer Lopez had been scheduled to play guest judge for the show’s Fashion Week finale. (Her appearance would have followed the job done by Victoria Beckham in Season 4.) Unfortunately, a last-minute foot injury forced the style icon to bow out of today’s taping.

It’s not known whether the injury was somehow related to Lopez’ current triathlon training. It also wasn’t made clear why Jennifer couldn’t still judge while sitting down.

Fortunately for the producers, they didn’t have to go far to find a knowledgeable replacement. For the first time in five installments, mentor Tim Gunn will be given his chance to have a say in the final selection.

Now, really—wasn’t this the way it should have been anyway?

Hot sexy mamas!Jennifer Lopez (during pregnancy and after childbirth)

With babies galore in Hollywood these days, we wonder how some celebrity mummies manage to bounce back to their original size (and even thinner!) post-pregnancy. Here, we rate those hot bods and uncover some diet and fitness secrets they have used to shed those extra kilos. We hope that when we get pregnant, the extra weight comes off this easily!

Who are the twins? Emme Marbiel Muñiz and Maximilian "Max" David Muñiz, born February 2008

Who’s the daddy? Mark Anthony

What’s the secret? When Jennifer was pregnant with her twins, she relaxed for the first six weeks before beginning to work out again. She trains thrice a week with Gunnar Peterson, doing 20-30 minute walks with varying sets of push-ups and lunges. The new mum’s diet consists mainly of fresh fruit, raw vegetables and protein at each meal, drinking plenty of water and avoiding red meat till she reaches her goal of 120 pounds. Considering her strict regimen (no late nights, alcohol or cigarettes), she’s bound to reach her goal quickly!

Jennifer Lopez: "I Don't Know if I'm Going to Have Kids Again"

Jennifer Lopez says she wasn't worried that she wasn't able to get pregnant quickly.

"We knew nothing was wrong with either one of us I had been checked, and [my husband Marc Anthony] had kids already," she tells the October issue of Elle. "I knew something's not ready here, in my head or in my life, and when it is, I know it's going to happen."

But she says she knew instantly when she was pregnant one day while sitting down for hair and makeup.

"I felt a flutter. The weirdest little ... flourish," she recalls. "My makeup artist said, 'Whats the matter?' I didn't say anything, but in my head, I was like, 'I have life inside me!'"

See what Jennifer Lopez looked like pregnant.

Following weeks of speculation, she announced she was expecting during a Miami stop on her El Cantante Tour concert in November 2007.

"While pregnant, we came off tour and I said [to Anthony], 'I did the superwoman thing, I finished the tour now I need you to take care of me. I love doing things for you; if I'm not cooking, then I'm picking out a shirt.'

"'But this is the first time in my life where I'm just going to be a little bit selfish. I don't know if I'm going to have kids again, so I want it to be a beautiful experience. I don't want to have any drama. I want to just be smiling every day.'"

To remember her pregnancy with twins Max and Emme, she commissioned a book of photos of herself for Anthony two weeks before giving birth.

"I was like, 'How am I going to rock this moment of my life?'" Lopez says. "I felt very womanly. Marc was in a dream. He loved it."

Look back at Jennifer Lopez's fashion highs and lows.

Next up for Lopez: She is competing in her first triathlon, which takes place Sept. 14 in Malibu and benefits Children's Hospital Los Angeles.

"I feel great," she recently told Good Morning America. "I have more energy I'm proud of myself."