After that, Finkelstein told Gongaware "he thought Jackson had an opiate dependency problem, " the filing said.

CNN: Elvis' ghost haunts Michael Jackson death trial

Gongaware testified that he saw "no indication at all" that Jackson was using drugs during that tour.

CNN: AEG exec: I didn't know Michael Jackson abused drugs

Murray was not Gongaware's first choice to be Jackson's tour doctor in 2009, according to the filing.

CNN: Elvis' ghost haunts Michael Jackson death trial

Gongaware is currently the tour manager for the Rolling Stones North American tour.

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Gongaware was the top producer of Jackson's comeback concerts when the singer died of an overdose of the surgical anesthetic propofol.

CNN: AEG exec: I didn't know Michael Jackson abused drugs

Gongaware was there the whole time, in charge of tour logistics, aware of the various physicians present, and he discussed with Dr. Finkelstein Jackson's opiate problem.

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But an interview that Jackson gave to Barbara Walters weeks after Diana's death could help Jackson lawyers refute Gongaware's claim that no doctor traveled with the singer during the tour.

CNN: AEG exec: I didn't know Michael Jackson abused drugs

Gongaware wrote to his boss, AEG Live President Randy Phillips, that they should present gross ticket sales numbers to Jackson, not the percentage of the net profits, during contract talks.

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When Gongaware was managing Jackson's 1993 tour, he warned the tour doctor "Don't be a Dr. Nick" -- a reference to Presley's last physician -- the doctor testified in a deposition.

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But Gongaware and others did not know, he said.

CNN: AEG exec: I didn't know Michael Jackson abused drugs

Jackson lawyers argue that Gongaware should have known the hazards of hiring the doctor because of his personal experience with Jackson -- and his work with other artists, including on Elvis Presley's last tour.

CNN: AEG exec: I didn't know Michael Jackson abused drugs

Gongaware insisted he was joking about the reactions.

NPR: AEG Exec Discusses Jackson Interactions, Emails

He showed jurors an e-mail sent to AEG Live President Randy Phillips and Co-CEO Paul Gongaware by "This Is It" stage manager John "Bugzee" Houghdahl on June 19, 2009 -- six days before Jackson died.

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"Though those tours were hugely successful, Jackson's tour doctors, one of whom Gongaware had hired, were administering pain killers to Jackson, and Gongaware thus was familiar with Jackson's substance abuse problems, " the Jackson brief said.

CNN: Elvis' ghost haunts Michael Jackson death trial

"He was a basket case and Kenny was concerned he would embarrass himself on stage, or worse yet -- get hurt, " production director John "Bugsy" Houghdahl wrote to AEG Live top execs Randy Phillips and Paul Gongaware.

CNN: Sweet controversy at Michael Jackson death trial

But Jackson lawyers will argue that Gongaware, who closely watched expenses on the "HIStory" tour because it was losing money at one point, would have noticed spending on hotel rooms and fees for a doctor traveling with the tour.

CNN: AEG exec: I didn't know Michael Jackson abused drugs

Despite working as a tour promoter for 37 years -- including for Led Zeppelin, the Grateful Dead and many others -- Gongaware testified that the only artist he ever knew that was using drug on tour was Rick James.

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Gongaware, under questioning by his own lawyer Friday, testified that he only became aware that Jackson was addicted to painkillers when the singer made a public announcement after his "Dangerous" tour abruptly ended so he could enter rehab in 1993.

CNN: AEG exec: I didn't know Michael Jackson abused drugs

Gongaware was with Presley manager Col.

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Jurors were shown several e-mails from Gongaware that Jackson lawyers suggested were evidence that AEG Live deliberately misled Jackson about how much money he would make from his comeback concerts and how many days he would have to rest between shows.

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When Gongaware warned Dr. Finkelstein, who the brief described as his "close friend, " not to become Jackson's "Dr. Nick, " he was "warning me, you know, don't get all infatuated where you start administering meds to a rock star and have the rock star overdose and die on you, " Dr. Finkelstein testified.

CNN: Elvis' ghost haunts Michael Jackson death trial