One question that I receive fairly often is "What is a Mash-up?". The answer is always kind of difficult to put into words; you really need to hear an example and then you know what it is. Last night DJ Mickey Bono played this mashed song which I had never ever heard before. This is an incredible mixing of Rihanna's Only Girl In The World song with the Mannequins classic, Faithless' Insomnia. Listen how these two improbable songs have been merged into one and then you'll know what a Mash-up is. This is DJ's From Mars, Rihanna vs Faithless.