We didn't think there could be a photobomb as perfect as when Jennifer Lawrence crept up on Taylor Swift or that time Zac Braff appeared in the back of a wedding photo. That was until Rihanna had a go. That's right RiRi has now joined the photobomb hall of fame, as she popped up in a Twitpic behind the reunited Full House dads John Stamos, Bob Saget, and Dave Coulier.
Rihanna was on Good Morning America when she ran into the 90s TV stars and crept up on them with her bunny ear fingers. Well wouldn't you? It's a solid effort from Rihanna, all that's missing is the Olsen twins and Michelle Tanner scrunchies.
Rihanna could write a photobomb how to as she has been targetted by a number of fans and celebs in her time. Chris Rock, Harry Styles and the Smith family have all photobombed RiRi, so it's about time she got her own back. So how does Rihanna's photobombing skills compare to her peers?
Her BFF Cara Delevingne is a photobombing pro, as she has snuck up on Miranda Kerr, Sienna Miller and Jourdan Dunn with her very best Miley tongue out (natch). Then there are the unlikely first-time offenders: Kevin Spacey and a jogger, Sid Owen behind Chris Brown and Anne Hathaway grinning behind Harold Perrineau. But the girl to watch out for on the red carpet is Jennifer Lawrence - that time she ran her fingers through SJP's headdress is still our number one photobomb ev-ah.
See how Rihanna's photobomb compares to other celebrity attempts in the gallery below...