Mariah Carey and Alicia Silverstone have topped a poll of celebrities who gave their children the worst names.

Mariah Carey’s choice of the name Moroccan for one of her twins with TV presenter Nick Cannon tied as the worst boy’s name.

Alicia Silverstone’s bizarre name of Bear Blu for her son tied for first place.

Former “Top Chef Just Deserts” contestant Tania Peterson and her husband Phil had the distinction of choosing the worst girl’s name with her choice of Zuzu Audrey for their daughter.

More than 10,000 people voted on the poll carried out by website BabyNames.com.

Mariah Carey’s choice of the name Moroccan for one of her twins with TV presenter Nick Cannon tied as the worst boy’s name

The best celebrity girl’s name was Willow Sage Hart, the daughter of singer Pink and motocross star Carey Hart.

The best celebrity boy’s name was Mason Evan Smith, son of rapper/actor Ne-Yo and his girlfriend Monyetta Shaw.

While the name Moroccan was not a hit Mariah Carey’s choice of the name Monroe for her daughter was popular with voters.

Other famous faces to disappoint with their choices include rock star Bryan Adams who called his daughter Mirabella Bunny.

Actor Kevin James’ son Kannon is also on the list.

Celebrities giving their children unusual monikers is nothing new but in recent years there has been a trend for even more outrageous names.

Jennifer Moss, founder of the website BabyNames.com said some of those chosen by celebrity parents have a chance of becoming popular.

“Celebrity parents have a huge influence on baby name trends,” said Jennifer Moss.

“As long as the names aren’t too far out, you could see celebrity-chosen names hitting the top ten within a year.”

Jennifer Moss said the girl’s name Harper, chosen by David Beckham and his wife Victoria for their daughter, is now number ten on the most popular baby names of 2011.