Songs come from TJ Media and are all licensed. They make agreements with the record labels. The artists you mentioned will have some or none of their songs on list. Unfortunately even for the business, there is no way to influence what gets added. The open mic karaoke places will have these songs. However they are using them without proper licensing which will subject them to fines and legal action.
The song list is always being updated. Some rooms have certain songs while others don't. Try calling them and asking.
I know the song list can't be accessed online. Ask for a room with an English remote. Try the search function. That usually works best
Nope
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