In the First World, pop music, hip hop music, contemporary R&B, new wave, country and alternative rock dominated and defined the decade's music with electropop, synthpop and dance music becoming dominant by end of the decade.
The 2000s was a decade that started on January 1, 2000 and ended on December 31, 2009. It was the decade in which the 21st century and 3rd millennium began.
