It might seem like celebrities share everything about their lives with fans, but that's really just not true at all.
They share what they want people to know. There's so much we have no knowledge of especially when it comes to their love lives! To be fair, it's probably not fun to have your arguments and romantic milestones plastered across the latest tabloids. BUT, sometimes fans don't even realize their favorite stars are dating let alone know each other at all!
Remember when Taylor Swift and Tom Hiddleston were caught kissing weeks after her Calvin Harris broke up? Or when Niall Horan was photographed smooching a girl no one had ever seen before?
Yes, it happens more than you think!
Click through the gallery and check out all of these famous couples who were so sneaky that you had no idea they were together!
Niall Horan and Celine Vandycke
When it comes to Nialler's professional career, he is an open book. But, it's a different story when it comes to his love life. No one thought Niall was dating anyone until he was randomly caught kissing Celine at a music festival over the summer! These two haven't been photographed together since so there's no telling where their relationship stands. TBH, they could be the sneakiest people ever and still see each other from time to time without the paparazzi getting wind of it!