Prince performs at the 10th Anniversary Essence Music Festival at the Superdome on July 2, 2004 in New Orleans, Louisiana.

Prince performs at the 10th Anniversary Essence Music Festival at the Superdome on July 2, 2004 in New Orleans, Louisiana.

*Authorities investigating Prince’s death have reportedly turned their attention on where the singer got his large supply of prescription drugs, and whether it involved more than one doctor.

According to TMZ, multiple physicians were involved, and at least one of them was a “personal friend” of Prince … this according to members of the singer’s family.

Per TMZ:

Prince developed an addiction to Percocet sometime before his hip surgery in 2010, and almost died from an overdose 6 days before his death. What’s significant … Percocet is a controlled substance, and a single doctor who prescribes an excessive number of pills will be flagged by state and federal authorities. As a result, as in Michael Jackson’s case, someone addicted to a drug who needs more than the medically necessary amount will doctor shop.

As we reported, Prince went to a local Walgreens pharmacy 4 times in the week he died to fill prescriptions. Our sources say authorities are on the hunt for the various doctors who prescribed and pharmacies that filled Prince’s prescriptions. We’re told authorities are also interested in possible aliases the singer might have used.

As for at least one of the doctors being friends with Prince, it may have shades of Michael Jackson. In Jackson’s case, a number of doctors crossed the line by prescribing drugs that were not medically necessary, in order to ingratiate themselves with the singer.