The Swedish House Mafia, Dutch wonder Laidback Luke and Canadian vocalist Deborah Cox teamed up for one of this year's biggest tunes, an anthem that was released at the Miami Winter Music Conference 2009 where it smashed the dancefloors and gained immediate support from Eric Prydz, Pete Tong, David Guetta, Dirty South, Bob Sinclar, and the massive crowds.

As 2009 comes to a close, SENATUS has chosen "Leave the World Behind" as House Song of the Year, marking an incredible journey for the network and recognizing the incredible energy exuberating from this track.

The Swedish House Mafia is a group of three popular house DJs and producers ~ Axwell, Steve Angello, and Sebastian Ingrosso.

Axwell has said the formation of the Swedish House Mafia occurred when he moved to Stockholm and met Sebastian Ingrosso while drinking, he later met Steve Angello through Ingrosso. "The name is just a random thought.", as described by Steve Angello, it occurred outside a 7 Eleven at late night while drinking coffee.