The 'Nothing Compares 2 U' singer posted on Facebook that Hall was the late music icon's drug supplier.
Arsenio Hall wants everyone to know that he was not Prince's "drug supplier."
The comedian filed a $5 million libel lawsuit against Sinead O'Connor on Thursday, after the "Nothing Compares 2 U" singer made accusations on her Facebook that Hall provided the late music icon with drugs.
"Desperate, attention-seeker Sinead O'Connor has maliciously published outlandish defamatory lies about comedian Arsenio Hall, falsely accusing him of supplying illegal 'hard drugs' 'over the decades' to the recently deceased musical artist, Prince, and of spiking her with drugs once years ago," Hall's legal team writes in court documents obtained by ET, calling the accusations "despicable, fabricated lies."
The lawsuit refers to a Facebook post that O'Connor made on Monday, where she wrote:
"Two words for the DEA investigating where prince got his drugs over the decades.... Arsenio Hall (AKA Prince's and Eddie Murphy's b*tch) Anyone imagining prince was not a long time hard drug user is living in cloud cuckoo land. Arsenio I've reported you to the Carver County Sheriff's office. Expect their call. They are aware you spiked me years ago at Eddie Murphy's house. You best get tidying your man cave."
Hall's attorneys claim the "wild and false accusations" made in the post caused substantial harm to the former talk show host's reputation, adding, "O'Connor is now known perhaps as much for her bizarre, unhinged internet rants as for her music."
"Among other things, O'Connor has repeatedly admitted that she actually detested Prince during his life, that she had a feud with Prince, and that she once had a violent fistfight with Prince and spat on him repeatedly after she told Prince 'to go f**k himself,'" the court documents also state.
EXCLUSIVE: George Lopez 'Assisted' Prince's Family Following the Late Singer's Death
Prince was found dead in an elevator at his Paisley Park estate in Chanhassen, Minnesota, on April 21. On Thursday, it was reported that Percocet was present in his body at the time of his death, though it was unclear whether the painkiller caused or contributed to the "Purple Rain" singer's death.
Earlier this week, the U.S. Attorney's office confirmed that they were joining the investigation into his death, along with the DEA.
Learn more about the latest report of Prince's alleged drug abuse in the video below.