42-year-old Mison Sere, the new winner of Zimbabwe's fourth annual "Mr Ugly" contest in 2015. (Photo/Xinhua)

42-year-old Mison Sere, citing his numerous missing front teeth and a wide range of grotesque facial expressions, became the new winner of Zimbabwe's fourth annual "Mr Ugly" contest. The result has upset supporters of the crowd favorite and prompting rioting at the event.

William Masvinu, who has held the title since 2012, mobbed the judges upon hearing their decision, claiming that Sere was "too handsome" to win and his ugliness was not natural since it was based on missing teeth.

William Masvinu (first on right), who has held the title since 2012 poses for photo with another constant. (Photo/Xinhua)

Masvinu, gesturing at his rival, claimed: "I am naturally ugly. He is not. He is ugly only when he opens his mouth."

Sere dismissed the critics as just "sore losers" as he pocketed the $500 prize.

The 'Mr Ugly Zimbabwe' was sponsored by a local businessman David Machowa since 2012. "We are looking for natural ugliness," Machowa said.

Facial features count the most, but contestants will also be judged according to their confidence when walking the runway and how they handle the question-and-answer round of the pageant.

"People have always seen ugliness is something to be ashamed of," said Machowa, explaining why he launched this alternative pageant. "Looks are God given. We should all be proud of who we are."