Happy Birthday, Axl!
Fergie posted this sweet shot for her son's birthday in August 2017. "Happy 4th bday axl jack!!!" she wrote on Instagram. "I love you -mommy."
North Dakota Bound
Josh excitedly brought Axl to the North Dakota State Fair in July 2017. (The 44-year-old actor grew up in Minot.)
Josh and Axl got their friends and family together to wish Fergie a happy 42nd birthday in song. "HAPPY BIRTHDAY FERGIE FERG!!! Love you madly, JD, Axl and Company," the Transformers star wrote on March 27.
There was no sign of trouble when Josh posted this family photo to Instagram to celebrate his and Fergie's 8th wedding anniversary in January 2017. "8 years!! Love you babe," he wrote.
A Very Goofy Christmas
Axl couldn't get enough of his dad hamming it up when the whole family met Santa in December 2016.
Fergie shared a #tbt in September 2016 of her jet-setting family's trip to England.
The proud parents brought son Axl to his first Los Angeles Dodgers game in August 2016, where Josh had the honor of throwing out the first pitch. The Dodgers are Fergie's home team -- she grew up in Hacienda Heights, a suburb of L.A.
"Thank u daddy @joshduhamel 4 the snow in cali! (somebody was super happy to have hot cocoa…)," Fergie wrote on Dec. 16.
Fingers crossed that Josh and Axl star in a Top Gun remake! "My son thinks I can actually fly an F16. Let's just go with that for a while..." Josh said of this adorable photo shared from the duo's visit to California's March Air Force Base in April 2016.
The Duhamel family's 2015 Christmas card was pure perfection.
Josh posted this pic of himself with Axl to Instagram on Christmas Eve and promptly melted our hearts.
Did the Duhamels make for the cutest or scariest Halloween family in 2015? You decide!
"Do I have something on my face?" Josh jokingly captioned an Instagram shot of Axl clearly enjoying his ice cream cone in July 2015.
Fergie and Josh celebrated their son's 2nd birthday in style -- '80s style, that is -- recreating Maverick's look from the 1986 classic, Top Gun.
The Duhamels helped Axl's cousin, Jagger, celebrate his first birthday in January 2015.
Don't Tell Mom
The Safe Haven star sneakingly dressed up his son in Minnesota Vikings gear in December 2014. "Mom thinks I'm rooting for the Dolphins. Let's let her keep thinking that... #SkolVikings," he joked on Instagram.
Josh and Axl visited a bikini-clad Fergie while she was filming the music video for her song, "L.A. Love," in November 2014.
Daddy Nose Best
"He's picking out my birthday gift," Josh quipped of his son's nosing around in November 2014.
Smell Ya Later
Axl dressed up like a skunk for Halloween 2014. "First trick or treat!!! Daddy's lil stinker :)," Fergie captioned this precious Instagram post.
Axl's Rap Battle
Axl may be the cutest Wu Tang Clan fan ever! "Had to post this... Axl giving some east coast love. #wutangforever," Fergie wrote in September 2014.
Little Axl got a little help from Dad in wishing his mom a very happy birthday in March 2014.
The new parents snagged a selfie during their date night at the Eagles concert at The Forum in Inglewood, California, in January 2014.
Baby's First Christmas
An itty bitty Axl helped Fergie and Josh celebrate their first Christmas as a family of three in 2013.
The Life As We Know It star spent some quality outdoor time with his newborn son in October 2013.
The Duhamels proudly introduced their son to the world via Instagram in September 2013. "Axl Jack Duhamel Day 1
Life is good :)," Josh wrote, adding the telling hashtag, "#paparazziyoucanleaveourhousenow."
Josh helped his wife celebrate her pregnancy by donning a matching mini at the 2013 Kids' Choice Awards.