Earlier this week, West earned headlines for a rambling, egomaniacal interview with BBC Radio in which, among many, many other absurdities, he accused the Italian fashion house Fendi of stealing his design for the world's least practical athletic wear.
In response, Kimmel gently mocked the rapper/Kim Kardashian's main squeeze with a sketch featuring a child actor who re-created the bizarre rant. As far as late night ribbing goes, it was pretty mild stuff, but that didn't stop West from going on (yet another) all-caps Twitter tirade aimed at Kimmel.
"SARAH SILVERMAN IS A THOUSAND TIMES FUNNIER THAN YOU AND THE WHOLE WORLD KNOWS IT!!!" read one of West's less profane tweets. (Kimmel and Silverman once dated.)
And, as Kimmel revealed on his show Thursday, Yeezy didn't stop there: He even called the host and demanded an apology. Instead of groveling, Kimmel systematically read and responded to each of West's tweets on the air.
In one, West boasted of the many, ahem, beautiful women he'd slept with. Kimmel, in a not-so-subtle dig at West's baby mama, fired back, "I've seen the video. I know."
The comedian also shared some embarrassing details about his phone conversation with West: "He told me on the phone, and I swear to God this is true, he said, 'I am the most powerful voice in media. I am Pac!' ... He said, 'You will never be able to show your face at a 14-year-old's high school football game and be cool again.' He really is Pac. That's right out of the Tupac playbook.' "
Some skeptics have suggested the feud may just be another one of Kimmel's elaborate hoaxes, but that seems unlikely: West isn't exactly known for having a sense of humor.
We've posted the sketch that got 'Ye all riled up above. To see Kimmel's response in its entirety, click here (but be warned: it includes some salty language).