US pro golfers swap irons for bling in charity effort

Four US golfers have swapped their irons for gold bling in an effort to raise money for charity.

The winner of last year's US Masters, Bubba Watson, has teamed up with fellow pro golfers Ben Crane, Rickie Fowler and Hunter Mahan to make a spoof hip hop video.

The self-styled 'Golf Boys' are aiming to repeat the success of their 2011 single 'Oh Oh Oh' which was viewed almost six million times on You Tube.

"We are in a truly unique era," Crane told the PGA Tour's official website. "I love that we can goof off on YouTube and help people across the world. I'm all in for that."