Prince William, Kristen Bell
Credit: Indigo/Getty; FilmMagic/FilmMagic

Spotted: Prince William gave the family dog, Lupo, a sweet smooch mid-polo match while his wife, Kate Middleton, cheered from the sidelines. And Kristen Bell hugged Carrie, the merengue-dancing golden retriever, after watching the pup work the dance floor at Bonnaroo. Click through the gallery to see more celebrity animal lovers and their furry friends!