2 definitions by 1729
Pretty much the opposite of Mainstream music. Rarely, if ever, gets on the radio or top 40, and it's not usually well known to the general public. Also known as "Underground Music".
by 1729 February 16, 2009
Music that's usually on the radio, Top 40 and is well known to the general public. Usually criticized by fans of the previous mainstream generations, and people who prefer bands and/or genres that aren't apart of the mainstream popularity of the time.
Todays Mainstream Music usually includes Bands/Artits such as 50 cent, Rhianna, Fall Out Boy, My Chemical Romance, etc.
by 1729 December 17, 2008