The Simpson-Wentzes

Vroom-vroom! Rocker pop Pete Wentz and his towheaded tyke Bronx, 2½, toy around with some miniature racing cars at a park in Sherman Oaks, Calif., on July 16.

He's got dad's smile! Wentz shares a hearty hug with his beaming 2-year-old son Bronx on June 30 in L.A.

Ashlee Simpson may have a new guy in her life, but her main man is still Bronx, who cools down with a smoothie in Los Angeles on June 28.

Though living separate lives, Simpson and Wentz continue to enjoy family time with Bronx on May 29 at a Los Angeles farmers' market.

The Simpson-Wentzes get color-coordinated while taking Bronx to L.A.'s Travel Town Museum on April 21.

It's a match for the mother-son pair, who go gray to celebrate the launch of Lucky Kids magazine on April 7 in Hollywood.

Simpson and Wentz sport matching smiles while satisfying their coffee craving during an afternoon out with their 2-year-old at L.A.'s Beverly Glen Market Place on March 31.

After filing for divorce from her husband of two-and-a-half years, Simpson steps out with her little guy for the 2nd annual Milk + Bookies Story Time event on March 20 at L.A.'s Skirball Cultural Center.

Embracing his relaxed new do, Wentz and his towheaded tot enjoy the great outdoors on Jan. 18, spending some quality play time at a Beverly Hills park.

Ho ho ho! The festive trio get into the holiday spirit, posing for a family portrait on Dec. 13, 2010 at the Old Navy Awkward Holiday Photo Mobile at L.A.'s 3rd Street Promenade.

Can you dig it? The rock pop bonds with his big boy Bronx, 2, during a sunny trip to a Beverly Hills playground on Dec. 6.

On Oct. 15, a newly blonde Simpson strides into New York's JFK Airport with her equally blonde babe Bronx.

What better way to beat the L.A. heat than with some retail therapy? The tight-knit clan embarks on a family shopping spree at the Westfield Shopping Center in Sherman Oaks, Calif., on Sept. 27.

Simpson holds tight to hubby Wentz while toting Bronx, 21 months, around New York City on Aug. 11.

No girls allowed! Wentz takes a seat alongside son Bronx, 19 months, during an afternoon playdate at a Los Angeles park on July 9.

Wentz and wife Simpson-Wentz are the picture of California cool during a June 3 shopping trip in L.A. with Bronx, 18 months.

Fresh off their Hawaiian vacation, the tight-knit trio get back to nature with a hike through L.A.'s Runyon Canyon Park on May 2.

Bronx, 16 months, gets an assist from dad Wentz as the hip duo – check out the little guy's cool graffiti T-shirt! – hit up Starbucks before heading to a local bookstore in Bel Air, Calif., on March 31.

While on their way to the studio in Venice Beach, Calif., on March 15, Wentz and Simpson-Wentz keep their peepers covered while hanging out with their towheaded cutie, Bronx, 15 months.

Someone's got his hands full! Wentz juggles his little helper, 13-month-old son Bronx, while making a coffee run to a Manhattan Starbucks on Jan. 13.

Wheee! Bronx, 13 months, gets into the swing of big city fun with parents Pete and Ashlee Simpson-Wentz at an NYC park on Dec. 28. The family is in the Big Apple as the singer and actress, 25, continues her run as Roxie Hart in Broadway's Chicago.

Bronx makes the most of his vantage point over Wentz's shoulder by pouting at the paparazzi! The father-son pair was finishing up an afternoon of Christmas shopping on Dec. 17 in New York City.

Simpson-Wentz snuggles up to son Bronx, 1, while out Christmas shopping with husband Wentz Dec. 16 in New York City. The family checked out Bloomingdale's before heading back to their apartment, where they’re staying as Simpson-Wentz, 25, performs on Broadway as Roxie Hart in Chicago.

Reunited and it feels so good! With Wentz back from a trip to Australia, he and wife Simpson-Wentz stepped out to CVS and treated son Bronx, 11 months, to a new dump truck in Los Angeles on Nov. 12.

How adorable! Wentz and Simpson-Wentz prepare for lift off during a trip Oct. 29 with Bronx on Disneyland’s Dumbo the Flying Elephant ride in Anaheim, Calif.

Eleven-month-old Bronx flashes a smile as he gets a lift from dad Wentz during a shopping trip to the Beverly Glen Mall on Oct. 24. "When you see the dad with your son, it’s a whole new side of them," Simpson-Wentz explains. "Just beautiful."

Family field trip! Wentz, Simpson-Wentz and baby Bronx hit the shops on Oct. 17 in Hollywood, Calif.

Talk about dog day afternoon: Wentz and Bronx, then 9 months, – plus mom Simpson-Wentz – shop for dog supplies on Sept. 16 in Studio City, Calif.

At a park in Beverly Hills on Sept. 10, Bronx gives papa Wentz a big smile while mom Simpson-Wentz looks on. "Bronx cracks himself up all the time. It’s cute," says the singer-actress. "He’s like, 'I am so funny!'"

Seven-month-old Bronx gives Wentz a hand while leaving Borders in Sherman Oaks, Calif., on July 10. "The first time I held him...I just knew everything was perfect," notes the proud papa. "It was like Legos, like it all fit together."

The Simpson-Wentz crew head to the Los Angeles Zoo for a family adventure on June 17. "We have a good balance with relationship and baby and career," Simpson-Wentz says of her marriage. "We’re both very supportive of each other."

Wentz, Simpson-Wentz and Bronx, then 6 months, attend the Time For Heroes Carnival on June 7 to show their support – and introduce their little guy to fellow mini-celebrity cuties.

Six-month-old Bronx and mom Simpson-Wentz visit the Children's Museum of Manhattan while promoting Melrose Place in the Big Apple on May 21. "I had the best pregnancy and I loved giving birth," she raved. "It was just the most amazing thing, so surreal but so real."

While catching a flight on March 3, Simpson-Wentz keeps a tight grip on 3-month-old Bronx – and Wentz on Ashlee. "We get to travel," she notes. "We’ve been to Paris, Japan, everywhere with my son."

Wentz and Simpson-Wentz introduce their 5-week-old son to the world in true millennium style – on dad's blog! "We decided to share the best gift we could ever receive with you: Bronx Mowgli Wentz," the proud parents wrote on Christmas Day.