So far, singer Rihanna has had a rough 2013. First, she topped the list as one of the worst selling magazine cover girls and now she's made another "worst" list for her hairstyle, the "Skrillex" cut.

A new poll, conducted by Fabriah.com asked 1000 people to vote for the worst hair fads of the last 13 years. Rihanna's "Skrillex" hairstyle received 20% of the vote. This hairstyle involves shaving half of your head while leaving the other half full of beautiful hair. Rihanna debuted this look at the premiere of her movie "Battleship" in May 2012.

There are several other high profile celebrities who have donned this look including Avril Lavigne, Ke$ha, and Ellie Goulding, all of whom have their own unique style. The "Skrillex" trend continues to rise in popularity and is showing no sign of slowing down.

The poll also ranked David Beckham's infamous cornrows and the beautiful Scarlett Johansson's mullet in second and third, while Nicki Minaj's general hair styles came in last place at number 13.

Click through the gallery above to see the full list of the worst hair trends of the 21st century.