Photobomb (verb): spoil a photograph of (a person or thing) by unexpectedly appearing in the camera's field of view as the picture is taken, typically as a prank or practical joke.
That's the definition of photobombing and it's definitely become an art, at least where celebrities are concerned.
Whether it's at fancy award shows, an industry event or even just strolling through Central Park, stars just can't resist the allure of the camera sometimes—even when it's not pointed at them.
Over the years, Jennifer Lawrence has jumped into photos of her famous friends, like Emma Stone and Taylor Swift, while Jimmy Fallon has been known to spoil a picture or two.
Plus, who can forget when Hugh Jackman unexpectedly hopped into frame during a reporter's live broadcast? Or when Queen Elizabeth II even got in on the fun, with Prince Harry later proving the photobomb gene might just run in the royal family?
So let's take a walk down memory lane and look back on the best celeb photobombs of all-time…
Call him by his name: Oscars photobomb expert!
Wakanda forever, photobombs whenever when these Black Panther co-stars hit the red carpet together.
"Hey guys get out of my shot," the Thor star captioned this casual pic in 2017.
Classic mom move.
The late night host was a bad boy when he crashed the Good Girls stars' photo opp at the 2018 Peoples Choice Awards.
LOL, remember her? Stay thirsty!
When the beloved actor went for a run in Central Park, he didn't intend to crash a couple's wedding photos. But he did just that in 2016.
And wedding photographer Meg Miller of Meg Miller Photography captured the spontaneous moment on camera. She posted snaps to her Instagram, captioning, "Yesterday's wedding was so beautiful! Elisabeth and Ryan, you planned one amazing celebration. The icing on the cake was @tomhanks stopping in Central Park to wish them congratulations."
Australian TV reporter Jessica Turner learned anything can happen when you're live after The Greatest Showman star ran up behind her during a broadcast and shouted "photobomb!" over her shoulder as he passed.
Turner handled the surprise like a pro, responding, "The best kind of photobomb, Hugh!"
"No one is safe," Apa jokes on Instagram after sneaking up on his Riverdale co-stars at the 2018 Teen Choice Awards.
The Hunger Games star photobombed her pal on the red carpet at the 2017 Governors Awards.
The Dancing With the Stars pro photobombed his sister Julianne Hough and her husband Brooks Laich at the 2017 Creative Arts Emmys, the couple's first red carpet debut as a couple.
In June 2017, the actress and comedienne made a surprise appearance during couple Jasmin Pereira and Jon Bates's wedding photo shoot in London.
"Best photobomb of my life," the Scandal star wrote on Instagram. "#supersoulsessions #supersoulsisters @oprah @drshefalitsabary."
The Modern Family actor photobombed his co-star and her husband at the 2016 SAG Awards.
The Queen delivered quite the unexpected surprise at the 20th Commonwealth Games in Glasgow back in 2014 when she cheekily photobombed a selfie being taken by two members of the Australia Commonwealth Games women's hockey team, Jayde Taylor and Brooke Peris.
"Aaaahhh the Queen photo-bombed our selfie," Jayde captioned the photo on Instagram.
The actor was quite the joker at LACMA's 2015 Art+Film Gala.
While Queen Bee and her husband were working the crowd at the 2015 Met Gala, this guy in the background was busy working a slice of delicious pizza.
Hart is usually the one pulling the pranks, but looks like the Charmed alum was able to pull a fast one on the Get Hard actor at his Hollywood premiere.
The fellas had some fun photobombing unsuspecting football fans on NBC's Super Bowl XLIX red carpet.
"Ahhh so cool and inspiring to meet #TimBurton tonight at my show @CatsMusical #Cats #LondonPalladium," the singer wrote on Instagram. "Even cooler being #photobombed by the #HelenaBonhamCarter !!!!!"
LOL! Usher snuck into KKW's red carpet photo at the 2014 MTV VMAs.
The pregnant star and her hubby get photobombed by a tattooed prankster in L.A.!
Ooops! While posing for red carpet pics, Julianna Margulies gets a surprise from a fellow actress.
While filming The Dark Knight Rises in Pittsburgh in 2011, the British star made a surprise (and rather menacing) appearance at a couple's nearby wedding shoot, featuring a group of lovely bridesmaids. "You have my permission to kiss the bride."
The victim: Kim Kardashian at Tao Nightclub at The Venetian Las Vegas to celebrate her 33rd birthday.
The model creeped up on Sienna Miller at the Costume Institute Gala for the 'PUNK: Chaos to Couture' exhibition at the Metropolitan Museum of Art in New York City.
Pegg pranked co-stars Paula Patton, Tom Cruise and Léa Seydoux at the Mission: Impossible - Ghost Protocol premiere in London.
The singer snuck into fans' selfie during the 19th Annual Miami Make-A-Wish Ball at the InterContinental Hotel in Miami, Fla.
The victims: Liam Hemsworth, Elizabeth Banks, Nina Jacobson and Jena Malone, attending a special screening of The Hunger Games: Catching Fire in New York City.
The victim: Leslie Mann, attending the premiere of Anchorman 2: The Legend Continues in London.