As a result, the host's adorable daughters -- 6-year-old Winnie and 5-year-old Frances -- have become instant stars in their own right. As has Jimmy's wife, movie producer Nancy Juvonen, who has been helping him shoot the daily installments of The Tonight Show: Home Edition.
Jimmy has long been relatively private about his personal life during his career, but with his family's newfound fame in the midst of the craziness in the world, fans are absolutely in loving his more-than-relatable relationship with his daughters and his wife.
To celebrate the Fallon family's adorable bond, we're taking a look back at some of the cutest family moments -- from their time in self-quarantine and earlier!
Jimmy's Daughters Work As His Graphics Department
Winnie has been showing off her artistic skills with hand-made title cards for her dad each night, and has been hard at work making his on-screen graphics (mostly by writing things out on strips of paper that Jimmy holds up). It's a great way to incorporate his little girls into his work, because there's no way he'd be able to keep them from participating anyway.
Jimmy Channels Every Parent When Bargaining With His Kids
Doing his show from home must be a major adjustment, but doing it with two small children in the same room has been hilarious to watch. There's likely not a parent in the country who can't relate to the host's efforts to keep his cool as his kids jump all over him, interrupt his monologue and flat-out argue with him over treats.
"You want another gummy worm? Yep, I know. Let's wait for dinner time," Jimmy pleaded with his daughters during a recent Tonight Show: Home Edition episode. "Yes, of course you can have gummy worms after dinner, OK everyone?
When Winnie pushed further, asking why her sister got one and she didn't, Fallon replied, "Franny got it because, well look at her, she's running around. You've got it under control, you're doing this [coloring]. Alright, I'll get you a gummy worm. Winnie, you've got to stay, someone's got to be on camera!"
Nancy Steps Out From Behind the Camera for a Sweet Stroll
While Jimmy's wife has been nice enough to serve as his camera operator during his quarantine episodes, she took her place in front of the camera for a special segment in which the happy couple took a stroll around their yard and answered questions from fans about their home life.
One of the most endearing revelations is when Nancy explained how their little girls seem to have a habit of sneaking into their bed at night to sleep next to their parents. "They don’t ever start out with us, but let’s just say, at 5 and 6, when they do crawl in at night with us, we’re not kicking them out,” Nancy said, adding that the dog often jumps up too. "It’s usually five of us!”
Franny and Winnie Take Over As the 'Tonight Show' House Band
While Jimmy is usually joined by The Roots when The Tonight Show is on the air, his adorable daughters took over for the iconic band during quarantine. With one daughter waving around a cowbell and the other banging away on the piano, his adorable daughters did a great job kicking off the episode in style.
Jimmy's Daughters Help Him With His Hand Washing Song
Before Jimmy kicked off on his "At Home" webisode series, he was already trying to entertain his fans with a useful tune about the importance of washing your hands during the coronavirus outbreak.
"Wash your hands, wash your hands, do NOT touch your face," Fallon croons, twice over, as the video cuts to his little girls adorably smiling at the camera while washing their hands in the sink, with soap. "If you wash your hands and do not touch your face then the world will be a better place."
The song, which Fallon titled simply, the "#WashYourHandsSong," is also just around 20 seconds, which makes it a perfect song to sing to yourself while washing your hands for the amount of time suggested by medical experts and the CDC.
The Fallon Family Kicks Off 2020 in the Magic Kingdom
For a special treat, Jimmy and Nancy flew their little girls out to Anaheim for a trip to Disneyland, where they kicked off the new year at the Magic Kingdom. Jimmy shared a snapshot showing the four of them sitting in a spinning teacup, and wrote in the caption, "Started off the new year at the happiest place on earth. Thanks to everyone at @Disneyland. Top to bottom a fantastic experience. Every little detail. Walt would be proud. Your mouse is in good hands."
The Family Enjoys an Idyllic Vacay in the Bahamas
In March 2019 -- nearly exactly one year before the COVID-19 pandemic lead to a nearly global lockdown -- Jimmy, Nancy and their girls went on a dream vacation to the Bahamas, where the TV host shared a family snapshot. They all rocked colorful wetsuits and stood in idyllic, crystal clear, ankle deep Bahamian water before an afternoon of swimming with dolphins.
"I always thought bowling shoes were a little gross - then I met the wet suit rental program," Jimmy quipped in the caption.
Franny and Winnie Help Jimmy Cut the Ribbon on His Universal Orlando Ride
In April 2017, when Jimmy came out to participate in the ribbon cutting ceremony for the new Race Through New York Starring Jimmy Fallon ride at Universal Orlando, he brought Nancy and his little girls along for the adventure.
Needless to say, the toddlers stole the show as they clapped, waved and wiggled in their parents' arms. At one point, Franny noticed that her grandfather was in the crowd and adorably yelled out for him. It was a truly sweet family moment that made the event even more memorable.
Jimmy Captures Some of His Family's Sweetest Moments on Camera
While the Tonight Show host doesn't post a ton of family photos -- preferring to keep his private life mostly private -- he knows that some occasions just call for being immortalized in a photo and shared with the world.
Here's a look at all the times Jimmy made the world a little brighter by giving fans a glimpse at his heartwarming family. (Including Gary the dog!)
For more on Jimmy's life as a father and family man, check out the video below.