Here is five of famous DJ in 2009 according DJ Mag.
Armin Van Buuren
Style: Trance/Progressive
Best known for: A State of Trance
Gig of 2009: Armin Only: ‘Imagine’, Los Angeles Sports Arena
Tune of 2009: Neptune Project ‘Aztec’ (FSOE)
Breakthrough DJ/Producer of 2009: Jerome Isma-Ae (DJ); Cosmic Gate (Producer)
The track that changed your life: 3 Phase ‘Der Klang Der Family’ [...]