Hardstyle is a music genre that shows similarities to trance, gabber and hardtrance. Hardstyle is also known as hard dance, hard trance or hardbass in countries outside the Netherlands. The sound is best described as hard beats with a strong melody. The average BPM is somewhere between 140 and 160 beats per minute. The first hardstyle events started near the end of 1999 and the beginning of 2000. Persons accredited in the development of the style is Dov J. Elkabas aka The Prophet, Raoul Van Grinsven aka Dj Zany, Wouter and Sjoerd Janssen aka Showtek and Dana van Dreven aka Lady Dana.