Grab your pup and give him or her a really big hug today because it's National Dog Day. (Maybe slip your dog an extra treat or two and go for a longer walk than usual!)
Even if you don't have a pet pooch, there are ways to celebrate! Stars like Miranda Cosgrove and Liam Payne have canine companions and the editors at M thought it'd be fun to play a little guessing game. Do you think you know which hound belongs to which celeb?
Click through the gallery below and to see the answers, highlight or double click the black bar. Which celeb doggy is your favorite? Tell us in the comments!