Two doctors who treated Prince before his shocking April 21 overdose are now reportedly the focus of a criminal investigation.

The FBI, DEA and Carver County District Attorney’s Office in Minnesota are probing family physician Dr. Michael Schulenberg and California addiction doctor Howard Kornfeld over meds prescribed to the late music icon, according to TMZ.

The guitar dynamo — rumored to have been struggling with hip pain for years — died on April 21, at 57, from an accidental overdose of the opioid painkiller fentanyl, the autopsy report concluded.

Schulenberg treated the late music icon at least twice in the weeks prior to his death, and said he had returned the day of Prince’s collapse to deliver test results. Kornfeld, whom Prince’s team called April 20 to set up an emergency intervention, had sent his son Andrew Kornfeld to the Grammy winner’s Paisley Park estate with the opioid addiction treatment buprenorphine.

Prince estate case gets second hearing in Minnesota

The younger Kornfeld reportedly wound up arriving before he could administer the medication, calling 911 after he and two others discovered the singer’s lifeless body in an elevator.

Schulenberg hasn’t been seen at his Minnetonka, Minn., clinic since The Purple One’s death, TMZ reported. Howard Kornfeld, however, has reportedly continued practicing at his Mill Valley, Calif., clinic.

The investigation echoes the probe into the 2009 death of Michael Jackson, who overdosed on the powerful anesthetic propofol.

Dr. Conrad Murray — who was jailed for two years after being convicted of involuntary manslaughter for secretly supplying the King of Pop propofol as a sleep aid — said in May that Schulenberg would need a good lawyer.

Prince died of accidental opiate fentanyl overdose: officials

“I would say clearly he needs an attorney, and a good one, because we have what we call ‘regular justice’ and ‘celebrity justice,’” he told “Inside Edition.”

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