Marisa Miller has fans all revved-up in a new campaign for motorbike giant Harley-Davidson.

The stunning blonde posed astride a bike for Harley-Davidson's first-ever Military Appreciation Month campaign, saluting active and retired US military personnel.

Marisa said: "I'm honored to help the Motor Company salute the brave men and women who keep our country free.

"My grandfather is a veteran and I've had the unique opportunity to meet several service men and women during recent USO tours, so the military holds a special place in my heart.