In short words, indie music has been around since the start of major record labels so since the 1900s'. Indie music took off well in the 50s and continues to thrive. The term "indie" was coined in the 90's.
About 85 years
1
about 100 years
Since 2005 - now
you spell Nelly Furtado wrong
About 85 years
1
about 100 years
They've been together since 1996
Punk music has been around for about 40 years.
As of August 2011, The Screamo Music category has been around for over two weeks now.
probably before recorded history.
2007-present
Since 1958
10000 years
40 seconds, this is why they are awful
probably since 1964