19. Kate Upton
Kate Upton has one dog, Boots, that she often posts photos of, and is seen here begging her boyfriend Justin Verlander to adopt this one!
20. Lauren Conrad
Lauren Conrad is a longtime dog lover whose live-in resident makes appearances on her Instagram regularly.
21. Ian Somerhalder
You won't find a stronger celebrity advocate for animals than Ian Somerhalder. He loves dogs, cats, horses and everything in between!
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