Why would you want to put out a song that you know someone already has done? I understand a new version with permission, but to put out a plagiarised song on purpose! That's just wrong.

When you play songs in a club that belongs to some else, the club owner is paying for permission for you to perform those songs by contributing to the BMI, ASCAP, and/or SESAC and royalites are paided to the publishing company and in turn to the original artist and songwriter.

It's pretty simple. If it's not yours (and you know it's not), it's stealing!