THE FATBOY SHOW : Drake threatens to sue Universal Music Group, Spotify for inflating 'Not Like Us' streams.

Drake is taking his rap beef with Kendrick Lamar to court.

In a petition filed Monday in New York Supreme Court, the Canadian rapper accused Universal Music Group and Spotify of engaging in a "scheme to ensure" Lamar's diss track, "Not Like Us," "broke through" on multiple streaming platforms. He claimed UMG used underhanded tactics to garner more listeners for the Lamar song on Spotify and radio stations, which resulted in "Not Like Us" breaking a few Spotify records and landing at No. 1 twice on the Billboard Top 100.

"UMG's schemes to artificially inflate the popularity of 'Not Like Us' were motivated, at least in part, by the desire of executives at Interscope (Records) to maximize their own profits," Drake's petition claims. He suspects UMG engaged in racketeering through bribery as well as deceptive business practices and false advertising.

As such, Drake asked the court to order the companies to hand over evidence related to his claims, otherwise known as pre-action discovery, so he could file a legal complaint.