selling out has something to do with compromising creativity and ethics for personal gain, in this biz, money and fame. dat really defeats the purpose of making music. but most ppl equate CHANGE with "selling out"...i mean if they hear a band change genres, esp. the poppier kind, they proclaim na "sellout" na tawn. depends lang sa situation, on the band and circumstances. we may call the band diffrent names, but let's just respect them kay ilaha sad na.