Through research, I discovered the claim that Michael Jackson bought the rights to Eminem's music catalog in retaliation for Eminem's diss track "Just Lose It" is a popular rumor that has circulated for years. However, there is no concrete evidence to support this claim. In reality, Michael Jackson did indeed purchase the publishing rights to various artists' catalogs, including Eminem's, through his company Sony/ATV Music Publishing. This acquisition occurred in 2007 for a reported $370 million. However, there's no evidence to suggest that this purchase was motivated by a desire for revenge against Eminem specifically.
Additionally, it's important to note that owning the publishing rights to a song or catalog does not necessarily grant control over the lyrical content or allow for alterations to be made. The publishing rights primarily pertain to the use and distribution of the music, as well as the collection of royalties.
Regarding the claim that Jackson did nothing with the lyrics of "Just Lose It" despite previously criticizing the song, there is no substantial evidence to confirm or refute this. It's possible that Jackson chose not to take any action regarding the song's content, or that any attempts to alter the lyrics were unsuccessful or deemed unnecessary.
In conclusion, while it's true that Michael Jackson acquired the publishing rights to Eminem's music catalog in 2007, there is no concrete evidence to support the notion that this acquisition was motivated by a desire for revenge over the "Just Lose It" diss track. The claim remains unsubstantiated and should be treated as a rumor until proven otherwise.
https://www.forbes.com/sites/zackomalleygreenburg/2011/01/25/michael-jackson-secret-business-genius-music-business/?sh=5ba190601862
https://exploration.io/what-are-lyric-rights/