Success/fame or any other kind of personal gain at the cost of credibility; and ANYBODY could be a sellout not just a musician/band. There's things that you get naturally and there's things that require selling out to have. And what sucks more is that you can't go back after you did it.
I don't want to name names so I can't give an example of selling out.
by C.F.C. October 29, 2007
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To compromise one's values and/or aristic vision in order to gain fame and/or monetary profit. Commonplace in today's musical society. It is rare to find a successful musical artist who has not "sold out", however, this is not to say that they do not exist.
Good Charlotte never sold out. Selling out requires having some artistic vision in the first place.
by Dani.Havok.Kidd August 11, 2003
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To trade one's integrity in exchange for money, popularity or success.

the term is mostly associated with music, in which a singer(s) or band will change their style in order to gain mainstream success or to get signed to a major label.
by roflolwtfbbq February 16, 2009
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According to the metal community, any band that gains the tinyest amount of fame is considered selling out.

So in short, listen to what you like and don't tell anyone else what they think is good music or not.
Dumbass: Omg I hate Dragonforce cuz they sold out and now they are popular and I am dumbass who can't derive my own taste in music lolroflz.

Me: What the shit? You need other people to tell you what sell outs are? That's pretty sad. Just listen to whatever pleases your ears you dumb fuck and shut up about it.
by jokemall April 12, 2007
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compromising of integrity, morality, and principles. in exchange for money.
bands that no one knew about a year ago now having 12 year olds love them are now sell outs.
by fxckthis August 4, 2008
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The act of changing yourself, your intrests, or everything about you to fit the majority. This can be applied to alot of things. Such as a good friend leaving you out to dry for personnal gains, or a music group changing their own style to sell records.

To abandon what is really you just so you can be "cool" in the eyes of everyone else.
My friends (sell outs): Hey lets go dress up in pink Polos and short khaki shorts and sperries and spend all our money on crown royal and take Daddy's BMW and go hang out with all those real rich preppy kids from school so we can be awesome and just maybe get laid from a couple of town bikes

Me: Have fun
by Cooper88 June 1, 2009
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someone who changes who they are/ style for approval or popularity of a person/and or people that can not be pleased and/or is never satisfied with them-self's.
Jen cheated Bob with Tom because Jen wasn't satisfied with bob and wanted more, so Bob study's Tom and switches up to a character similar to the Tom and try's to get her back, a sell out.
by cwise July 21, 2011
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