Most bands don't enjoy long-lasting success based entirely on cover songs. If a band wants to cover another artists song--and goes through the proper legal channels to do it--I don't think anything is wrong with that.
Enjoy your 3:45 of success.
If you have the talent to do your own thing, show some creativity and write your own songs, perhaps that success will last longer than a few minutes.
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My mom is a Diamondbacks fan. She really likes the Big Unit
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