Viral Marketing is situation when someone used a product or service and satisfy with result and tell others that the product or service is worth to buy. It spread out the news like a virus in computer. And that emerged a Modern Viral Marketing, is an advertisement about product or service with a new strategy for reaching their customer quickly by using social media as an intermediary. Because in this generation people use social media for follow news, friends and gain access very easy so if businessman want to create a new way to reach their customer? Viral marketing can answer their demand.