Yes, you would have to be the initiator of the project.
Rapper's/singer's/producer's can be compensated(PAID UP FRONT..lump sum, deferred pay or salary) as 1099 sub-contractor's. They do a service and are paid for it. You're essentially buying their right's while they are dirt cheap. No back end gross or net profit sharing at all, unless detailed as deferred compensation. So a fully filled out split sheet with signature's would reflect that all parties where paid in full for their services, leaving you as the sole owner. So your accounting records need to reflect this too. They would be listed as another expense line item. Not all will take this deal...but MOST do.
This is generally how most producer's/artist are operating in the industry..especially people who don't own their own label/prod co and are okay with being a ghostwriter or a ghost producer within someone elses company. It's lovely for those who put the footwork in and fund their own projects.
If you want to own 100% of your asset's, that has to be on your mind and reflected in your paperwork/records at all times. Keep detailed records. You have to be the boss. You keep what you demand.
Never sell/giveaway your right's in exchange compensation and always reimburse artist for work.
Bandcoach is right, you have to have a pool of $$$ from another source..that's basically your start-up capital!