UPDATED: The rapper went off on the late-night TV host on Thursday over a kids' parody that aired on Tuesday's "Jimmy Kimmel Live" poking fun at a recent interview West did.

Kanye West is not happy with Jimmy Kimmel, and he's letting his 9 million followers know about it.

The rapper fired back against the late-night host early Thursday evening on Twitter, after Kimmel spoofed a recent interview with BBC Radio 1's Zane Lowe, wherein West expressed his frustration with getting knocked down in the fashion world and declared himself the "biggest" rock star in the world.

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That interview became a talking point in the Sept. 24 episode of Jimmy Kimmel Live, where Kimmel highlighted his "favorite" part of West's interview, which he called "weird."

"Does Kanye West know he's not supposed to be his own hype man?" Kimmel asked before showing a snippet of the chat featuring a rambling West.

Kimmel then showed a spoof featuring two kids in the West and Lowe roles -- milkshakes in hand -- via "Kimmel Kid (re)Kreation."

Two days after the spoof aired, West began a Twitter tirade at 5:13 p.m. PT in response to Kimmel's spoof, and the two began to engage in a biting feud that has been ongoing on Twitter.

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And those leery of the West-Kimmel feud being fake following the "twerking fail" hoax? Kimmel addressed the speculation head-on, tweeting Thursday evening: "I'll tell you the whole story about @kanyewest tonight on the show - this is not a prank, I promise (unless it's being played on me)."

See the Twitter feud beginning with West's first tweet against Kimmel below.

JIMMY KIMMEL IS OUT OF LINE TO TRY AND SPOOF IN ANY WAY THE FIRST PIECE OF HONEST MEDIA IN YEARS — KANYE WEST (@kanyewest) September 27, 2013

apparently @KanyeWest is VERY VERY ANGRY with me.... — Jimmy Kimmel (@jimmykimmel) September 27, 2013

JIMMY KIMMEL PUT YOURSELF IN MY SHOES … OH NO THAT MEANS YOU WOULD HAVE GOTTEN TOO MUCH GOOD PUSSY IN YOUR LIFE… — KANYE WEST (@kanyewest) September 27, 2013

if it's not too much trouble @kanyewest, would you mind using @jimmykimmel ? Thanks — Jimmy Kimmel (@jimmykimmel) September 27, 2013

YOU CAN'T PUT YOURSELF IN MY SHOES. YOUR FACE LOOKS CRAZY… IS THAT FUNNY?… OR IF I HAD A KID SAY IT WOULD IT BE FUNNY??? — KANYE WEST (@kanyewest) September 27, 2013

SHOULD I DO A SPOOF ABOUT YOUR FACE OR YOU FUCKING BEN AFFLECK…#NODISRESPECTTOBENAFFLECK #ALLDISRESPECTTOJIMMYKIMMEL!!!! — KANYE WEST (@kanyewest) September 27, 2013

SHOULD I DO A SPOOF ABOUT YOUR FACE OR YOU FUCKING BEN AFFLECK…#NODISRESPECTTOBENAFFLECK #ALLDISRESPECTTOJIMMYKIMMEL!!!! — KANYE WEST (@kanyewest) September 27, 2013

I LIKE YOU, YOU KNOW ME, I WENT TO YOUR FAMILY'S WEDDING — KANYE WEST (@kanyewest) September 27, 2013

I like you too! Glad we cleared this up. RT @kanyewest I LIKE YOU, YOU KNOW ME, I WENT TO YOUR FAMILY'S WEDDING — Jimmy Kimmel (@jimmykimmel) September 27, 2013

WHO YOU MADE IT CLEAR TO ME WASN'T YOUR FAMILY WHEN I WAS ON THEN PHONE WITH YOU 5 MINUTES AGO, YOU MANIPULATIVE MEDIA MUTHERFUCKER. — KANYE WEST (@kanyewest) September 27, 2013

SARAH SILVERMAN IS A THOUSAND TIMES FUNNIER THAN YOU AND THE WHOLE WORLD KNOWS IT!!! — KANYE WEST (@kanyewest) September 27, 2013

I know! #WreckItRalph, right?! RT @kanyewest ARAH SILVERMAN IS A THOUSAND TIMES FUNNIER THAN YOU AND THE WHOLE WORLD KNOWS IT!!! — Jimmy Kimmel (@jimmykimmel) September 27, 2013