But one controversial ~father~ has just sprinkled even more drama onto the conspiracy, with Louis Tomlinson admitting he won't be spending the day with his 'son' Freddie.
"Happy Father's Day to all the dads out there ! Hope everyone has had a good day with their kids. Missing my little Freddie today x" he wrote on Twitter.
If you're familiar with Louis and his son Freddie, then you'll know that dedicated fans have wondered if the baby is even his the entire time. Many believe that the entire thing has been a PR stunt of some form.
But... we're sure Louis is just busy!! He is working really hard on his new album to be released soon, so we're sure if he were able to spend the day with his son, he would.
Fellow 1D daddy, Liam Payne just welcomed his baby boy Bear into the world with GF Cheryl, and we're pretty sure the small fam are spending today together.
"Happy Father's Day Dad and to all dads ... thanks for the messages guys!!!" he tweeted.
HAPPY FATHER'S DAY TO OUR CELEB DADS!