Diddy the latest star to take on Pepsi ad

P Diddy is reportedly to star in an advert for Diet Pepsi.

He is to appear alongside former supermodel Cindy Crawford and Desperate Housewives actress Eva Longoria.

Neither Pepsi nor the rap star's representatives have commented, but apparently the ad is set to debut during America's Super Bowl on February 6.

The spot is the first time P Diddy has promoted a product other than his own lines of business, which include Bad Boy Entertainment, Sean Jean clothing and two restaurants.