Justin Bieber shows off his dramatic new blonde look.

The pop singer has dramatically switched up his look with a peroxide bottle.

On Sunday the 20-year-old stepped out with his new look, making an appearance at the store opening for West Coast Customs shop in Burbank, clearly enjoying his new style.

A source has told HollywoodLife.com that Justin has chosen such a bold look because he’s trying to ‘shake things up’.

“Justin said he needed to ‘shake things up’ in his life. He thought it would be fun, he said, ‘now I am going to find out if blondes really do have more fun’,”