As Font has stated: you aren’t legally allowed to profit from someone’s creation… either a master recording or written work unless you have ownership of one of two things:
- A license agreement (permission) to sell the song, which you won’t get …*more on this in a moment or…
- You are the owner of the master recording.
You will not be able to get a permission for selling “for hire” songs because there aren’t enough royalties to the songwriters to justify your profiting once.
As you’re also not the owner of the original master recordings on karaoke tracks - you may not sell those either. But before you’re allowed to sell your own versions (like karaoke does) you must obtain permission from the owners of the publishing. Sending you back to problem number one.
In short…Can I rent out your kitchen? No, I may not.