Us Weekly reports that newly engaged couple Ashlee Simpson and Pete Wentz are expecting their first child together.

Simpson, 23, and Wentz, 28, announced their engagement last week, but have yet to confirm the pregnancy rumor. "We are thrilled to confirm their engagement and congratulate this happy couple," a spokesperson for the couple told Us. "Beyond that there is nothing to say."

UPDATE: Pete Wentz has denied the rumor. "This is all news to me," he told MTV. "I can't wait for the story about how I'm really in a gay relationship and this is all just a cover ... this is crazy."

Jennifer Lopez and her husband Marc Anthony welcomed twins -- a boy and a girl -- early Friday morning at a hospital in Long Island, New York. "Jennifer and Marc are delighted, thrilled and over the moon," Lopez's manager, Simon Fields told PEOPLE.

The girl weighed in at 5lbs. 7 oz., while the boy weighed 6 lbs. These were the first children for Lopez and the fourth and fifth for Anthony.

The couple first announced that they were expecting at a Miami concert on November 8, after keeping mum while touring. Lopez later told Bazaar that she is plans to take time off to be with her newborns. Read the Full Story

Jennifer Lopez and her husband Marc Anthony will soon have two reasons to celebrate as the couple will be welcoming twins, her father, David Lopez, confirmed to Escandalo TV. "Yes, twins," he said. "The thing is in my family, my sister also had twins, so it's a hereditary thing. I'm very proud. Jennifer has yearned to be a mother for many years."

While he may have gushed over his impending Grandfather status, David did not give away the biggest secret of all: the babies' sex. All in good time, as the singer/actress/dancer is due any day now.

Gwen Stefani is back on the baby wagon and adding one more to her family of three. According to PEOPLE, she and her hubby, Bush frontman Gavin Rossdale, are expecting their second child.

"They and the whole family are delighted," Rossdale's father, Douglas, confirms.

The rock couple are parents to Kingston, 20 months, who is already famous among the celebrity baby circuit. "He is a great lad," says Douglas Rossdale. "And we are very much looking forward to another grandchild."

According to Britain's The Sun, Stefani is 13 weeks pregnant. She and Rossdale will celebrate their sixth wedding anniversary this September.

UPDATE: Nicole Richie and Joel Madden welcomed Harlow Winter Kate Madden, a 6 lb. 7 oz. baby girl, according to PEOPLE. Christina Aguilera and Jordan Bratman reportedly texted family members, "Baby has arrived. Mom and dad are doing well!" but the child's gender is not yet known. Congratulations to both rockin' families.



Word on the street is that that both Christina Aguilera and Nicole Richie are not only having their babies as we type, but delivering said babies at the very same Los Angeles hospital!

What will the little ones' names be? Will these celebrity couples name their kids after fruits, gems or celestial bodies? Will Jordan Bratman teach baby Aguilera how to be a music superproducer like dear ol' dad? Will Joel Madden teach his little tyke pop-punk appreciation? Only time will tell!

In the meantime, and in celebration of these two new lives, check out our gallery of more celeb kids who were just born to rock. We've given them honorary status for the time being. Yeah, we have high hopes.

The latest pop star to jump on the baby wagon may be none other than 23-year-old Avril Lavigne. According to Canadian radio host Zack Taylor, who posted the news on his website today, the singer is one and one-half months along with her first pregnancy. She and her husband, Sum 41 frontman Deryck Whibley, will celebrate their second wedding anniversary this July.

Seven months into her pregnancy and Jennifer Lopez is already thinking about retirement. In the current issue of Harper's Bazaar, the expectant mother of twins gives her first interview since the baby announcement, admitting her trepidation about being a working mom.

'I don't know -- and I like that, because my life has been so planned for so many years," Lopez says. "Once I did the tour, I really just wanted to shut it down."

Always in the public eye, Lopez says she understood the media speculation and explains why she chose to stay quiet about the news. "I do realize people want to know [about the pregnancy] because they're interested, but this is the first time I'm going through this," she says. "I kind of feel like everybody knew anyway."

The 38-year-old singer/actress also says husband Marc Anthony helped shape the way she's handled the attention, making privacy her priority. "He made me realize you can be an artist, and have credibility and success, without your life being on public display," she says. "This is my experience and my husband's experience, and we get to hold that for a little while."

Christina Aguilera will have her baby this week, reports the New York Post. A source close to the 27-year-old pop princess told the paper, "Christina has a c-section scheduled for January 10, but she might need to push the date of the delivery up."

Aguilera and hubby Jordan Bratman have stayed mum on the sex of their first child, though they have been seen buying a lot of blue lately. The Post is reporting that the two are indeed having a boy, and are considering the names Jackson, Jake and Max.

Since Britney Spears' 16-year-old sister, Jamie Lynn, announced in December that she was expecting a baby with her long-term boyfriend Casey Aldridge, many have questioned the fate of her Nickelodeon show, 'Zoey 101.' Question no more. It was announced Friday that the fourth season of the hit tween show will be the final season.

"For now it looks like it has been canned," a source at the show said. 'Zoey 101,' a story about a young girl who enrolls in a typically all-male school, is aimed at children ages 9-14. TV sources are worried that airing the season will send the wrong message to children.

R&B crooner Robin Thicke is about to add "daddy" to his resume. According to Perez Hilton, the 30-year-old is expecting his first child with his wife, actress Paula Patton.

The couple was photographed at a New Year's Eve party in Las Vegas, where Patton was wearing a loose dress over a very apparent baby bump. Rumors about the pregnancy originally surfaced in September when the actress appeared to be showing at MTV's VMAs. The couple has yet to make a formal announcement.

Britney Spears' 16-year-old sister and longtime boyfriend Casey Aldridge are, in fact, expecting. While it was rumored in July that they were looking for an apartment together in California, no one saw this coming, including Jamie Lynn herself, who told OK! Magazine that the pregnancy was "a shock ... so unexpected."

According to the story, the 'Zoey 101' star, who is 12 weeks along, plans to raise the child in Louisiana so the baby can have a "normal family life." Spears broke the news to her mother, Lynne, just before Thanksgiving. The surprised (already) grandmother of two "didn't believe it because [her daughter has] always been so conscientious. She's never late for her curfew. I was in shock. I mean, this is my 16-year-old baby."

Nickelodeon has not yet released a comment about the news of its young TV star, but Jamie Lynn is expecting representatives at the network to be supportive. "I haven't spoken to [Nickelodeon] personally, but they have always been so great to me over the past years and have given me so many opportunities."

Zac Hanson, the youngest of the musical sibling trio, and his wife, Kate, are expecting a child in May.

This will be the first for the couple, and number eleven for the Hanson pack. Middle brother Taylor, 24, has three children with wife, Natalie (five-year-old Ezra, Penelope, 2 and River, 1) while the eldest, Isaac, 27, has one child with wife, Nikki (7-month-old Everett).

"I am utterly thrilled at the thought of becoming a father," Zac, 22, told PEOPLE. "I can't wait to meet this person."

"It will be really fun to see five little ones grow up together," Zac added. "I know watching them is going to inspire a lot of music."

Hanson are currently touring in support of their latest album, 'The Walk.'

After much speculation, Jennifer Lopez officially announced her pregnancy during the final stop of her U.S. tour in Miami on Wednesday night. "Marc and I are expecting," the Bronx-bred singer-actress said to the audience.

As the crowd erupted in applause, husband Marc Anthony bent over and kissed Lopez's belly. "I didn't know she was going to talk," he said.

This will be the first child for Lopez and the fourth for Anthony, although the couple is rumored to be having twins.

Jennifer Lopez has canceled the final date of her U.S. tour with husband Marc Anthony. The singer-actress was to perform in San Diego this weekend, a make-up date for her October 24 show that was postponed due to the wildfires in Southern California.

Lopez's concert promotions company, Live Nation, issued the following statement: "Unfortunately, rerouting the tour has been impossible due to the event's last-minute postponement caused by the area wildfire emergency."

Lopez is rumored to be pregnant with her first child, with some sources even speculating she's carrying twins, but she has yet to confirm the reports. The star has been photographed in flowing tops and loose dresses, further fueling the baby bump chatter.

Fashion designer Roberto Cavalli told PEOPLE last week that designing outfits for the Bronx-born bombshell was "complicated because every week she is getting bigger," inadvertently confirming the bambino rumors. Fellow pop star Christina Aguilera finally confirmed her (very obvious) "mommyhood" this week.

It's official! That growing baby bump that Christina Aguilera has been sporting is, well, just that. She's pregnant and due to give birth to her first child early next year, in case you hadn't noticed. The 'Dirrty' diva finally confirmed what absolutely everyone already knew in an interview with Glamour magazine.

Of her impending "mommyhood," the singer said, "I want to get it right," calling herself "a lucky girl" for sharing the experience with "supportive" husband, music executive Jordan Bratman. Read the full story.

And now, the big question: Will J. Lo take a cue from Xtina and confirm her rumored twins? Stay tuned.