The World's Ugliest Dog contest held it's 30th annual competition this year, drawing pooches of all shapes and sizes to the San Francisco Bay Area.

A 9-year-old English bulldog named Zsa Zsa took home the coveted title of "World's Ugliest Dog" this year at the Sonoma-Marin Sonoma-Marin Fairgrounds in Petaluma, California.

PHOTOS: The World's Ugliest Dog contestants and winners over the years

Why celebrate these unique-looking pooches? Many of the World’s Ugliest Dog contestants are up for adoption and the event helps raise awareness.