Photos: The World's Ugliest Dog contestants and winners over the years
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.
Why celebrate these unique-looking pooches? Many of the World’s Ugliest Dog contestants are up for adoption and the event helps raise awareness.
Dane Andrew (L) of Sunnyvale, California, and Storm Shayler (R) of Neath, UK, take a selfie with their dogs before the start of the 2017 World's Ugliest Dog contest at the Sonoma-Marin Fair on June 23, 2017 in Petaluma, California. Martha, a Neapolitan Mastiff, became the World's Ugliest Dog during the Sonoma-Marin Fair. Photo by: Justin Sullivan
Heather Peoples of Phoenix, Arizona holds her Chinese Crested dog Archie after he was crowned the World's Ugliest Dog at the 18th annual World's Ugliest Dog competition June 23, 2006 at the Sonoma-Marin Fair in Petaluma, California. The winning dog takes home a $1,000 dollar prize.Photo by: Justin Sullivan
Jon Adler kisses his dog Icky, a Chinese Crested, before the start of the 25th annual World's Ugliest Dog contest at the Sonoma Marin Fair on June 21, 2013 in Petaluma, California. Dogs from all over the country are competing for the honor of being the world's ugliest dog.Photo by: Justin Sullivan
Walle, a basset beagle mix, walks on stage after being crowned the winner of the 25th annual World's Ugliest Dog contest at the Sonoma Marin Fair on June 21, 2013 in Petaluma, California. Walle, a basset and beagle mix won the honor of being the world's ugliest dog. Photo by: Justin Sullivan
Walle, a basset beagle mix, sits on stage during the 25th annual World's Ugliest Dog contest at the Sonoma Marin Fair on June 21, 2013 in Petaluma, California. Walle, a basset and beagle mix won the honor of being the world's ugliest dog. Photo by: Justin Sullivan
Mike Rose holds his dog Roman, a Mexican hairless, for the audience during the 25th annual World's Ugliest Dog contest at the Sonoma Marin Fair on June 21, 2013 in Petaluma, California. Walle, a basset and beagle mix won the honor of being the world's ugliest dog. Photo by: Justin Sullivan
Josie, a Chinese Crested, looks on before the start of the 25th annual World's Ugliest Dog contest at the Sonoma Marin Fair on June 21, 2013 in Petaluma, California. Dogs from all over the country are competing for the honor of being the world's ugliest dog.Photo by: Justin Sullivan
Penny, a Pug, looks on during the 25th annual World's Ugliest Dog contest at the Sonoma Marin Fair on June 21, 2013 in Petaluma, California. Walle, a basset and beagle mix won the honor of being the world's ugliest dog. Photo by: Justin Sullivan
Ty Oppelt holds his dog Ellie Mae, a Chinese Crested, during the 25th annual World's Ugliest Dog contest at the Sonoma Marin Fair on June 21, 2013 in Petaluma, California. Walle, a basset and beagle mix won the honor of being the world's ugliest dog.Photo by: Justin Sullivan
A Neapolitan Mastiff named Martha sits next to a trophy after after winning the 2017 World's Ugliest Dog contest at the Sonoma-Marin Fair on June 23, 2017 in Petaluma, California. Martha, a Neapolitan Mastiff, became the World's Ugliest Dog during the Sonoma-Marin Fair. Photo by: Justin Sullivan
A Chinese Crested dog named Rascal looks on during the 2017 World's Ugliest Dog contest at the Sonoma-Marin Fair on June 23, 2017 in Petaluma, California. Martha, a Neapolitan Mastiff, became the World's Ugliest Dog during the Sonoma-Marin Fair. Photo by: Justin Sullivan
A Neapolitan Mastiff named Martha rests on the stage after after winning the 2017 World's Ugliest Dog contest at the Sonoma-Marin Fair on June 23, 2017 in Petaluma, California. Martha, a Neapolitan Mastiff, became the World's Ugliest Dog during the Sonoma-Marin Fair. Photo by: Justin Sullivan
Contestants hold their dogs as they wait for the start of the 2017 World's Ugliest Dog contest at the Sonoma-Marin Fair on June 23, 2017 in Petaluma, California. Martha, a Neapolitan Mastiff, became the World's Ugliest Dog during the Sonoma-Marin Fair. Photo by: Justin Sullivan
Miriam Tcheng holds her Brussel Griffon Pug named Moe during the 2017 World's Ugliest Dog contest at the Sonoma-Marin Fair on June 23, 2017 in Petaluma, California. Martha, a Neapolitan Mastiff, became the World's Ugliest Dog during the Sonoma-Marin Fair. Photo by: Justin Sullivan
A Chinese Crested dog named Chase looks on during the 2017 World's Ugliest Dog contest at the Sonoma-Marin Fair on June 23, 2017 in Petaluma, California. Martha, a Neapolitan Mastiff, became the World's Ugliest Dog during the Sonoma-Marin Fair. Photo by: Justin Sullivan
A Chinese Crested dog named Chase walks on stage during the 2017 World's Ugliest Dog contest at the Sonoma-Marin Fair on June 23, 2017 in Petaluma, California. Martha, a Neapolitan Mastiff, became the World's Ugliest Dog during the Sonoma-Marin Fair. Photo by: Justin Sullivan