Two dudes are lost and wandering the deser and see a mirage -- a Fiat car filled with babes -- in the Fiat 500L commercial. They keep walking. They see Diddy in a Fiat, and he offers them some water, but they don't believe what they see or hear. But we hear a song playing at the Diddy-hosted, chick-and-water desert party upon which the wanderers eventually stumble. What is it?