The music producer, who is counter-suing the 'Tik Tok' hitmaker for defamation after she filed legal documents seeking to have their record contract dissolved and accused him of sexually, physically, verbally and emotionally abusing her for almost a decade, has submitted a number of pieces of correspondence from the singer as part of his evidence against her.
The undated card reads ''You just keep getting hotter every year''.
It also includes an affectionate handwritten message from Kesha which says: ''To the FOXXY-est producer EVER!''
''Thank you 4 helping me make my WILDEST dreams come true!
''I LOVE YOU!(sic)''
The documents also include friendly emails from Kesha's mother Pebe Sebert - who is suing the producer for allegedly causing her to suffer post traumatic stress disorder (PTSD) - in which she pledged to always be there for him.
According to TMZ, one note read: ''I hope you know, as much as you have been there for Kesha and me, that we will always be there for you, as family, and friends, if you need anything.''
Dr. Luke is also suing Kesha's mother claiming she orchestrated a smear campaign of lies against him and tried to extort him in a desperate attempt to get the 27-year-old singer out of her contract with him.
The 'Blow' hitmaker denied during a deposition for an unrelated lawsuit in 2011 that Dr. Luke - real name Lukasz Gottwald - had made any sexual advances towards, but her lawyer said the producer threatened her would hurt her if she ever discussed the alleged rape.
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