Spencer Pratt has branded an incident with Friends actress Lisa Kudrow as the "rudest moment" he's "ever encountered with a human being" in three separate TikTok videos.
In the first video, the Hills TV star responded to a comment from a fan who asked: "Spence! Tell us the rudest celebrity you've met!!"
The 39-year-old swiftly responded with: "Oh, that's easy - Phoebe from Friends. Hands-down one of the worst humans I've ever come in contact with. By far."
The short 10-second clip, which was broadcast to his 525,000 followers, left TikTok users confused, with many commenting for answers.
One user commented: "Tell us whyyy!"
"But wait I want the story behind this please," someone else added, to which Pratt replied: "If this hit million plus views I will think about telling the story."
It seemed viewers were desperate to know why Kudrow was so hated, as Pratt's video has been watched 4.1 million times.
His second and third TikToks describe the incident that led to his hatred towards the 59-year-old. In those videos, Pratt says he was at a party with his wife and fellow TV star, Heidi Montag: "The year was 2009 and Heidi and I were invited to our first elite A-list party [...] It was clear when we got there, no-one wanted us there.
"It was almost like we were filming for Punk'd and a camera was going to pop up, but Heidi and I didn't care as there was delicious food and a open bar," he added.
"As we were sitting there consuming a little caviar, Phoebe [Lisa] approaches, which was a little shocking as no-one had spoken to us at all at the party. Right in front of me she tells Heidi that she needs to get away from me as fast as possible because I'm going to murder Heidi and that I have the eyes of a serial killer," Pratt said about the incident.
Continuing his story, the father-of-one says: "Heidi waits to see if this a joke, maybe this is a hidden camera party. But no laughs, she [Lisa] just walks away. That right there as the rudest moment I've ever encountered with a human being".
Surprisingly, the videos and their accusations were lapped up by drama-obsessed viewers, who made comments like: "'The year was 2009' I'm immediately wheezing."
And: "I've been waiting ALL DAY for this."
Another comment made light of the fact Pratt only referred to Kudrow by the name of her character on Friends: "I love that you only refer to her as Phoebe."
Even celebrities got involved in the entertaining tidbits, with Hollywood gossip blogger Perez Hilton writing: "I've been waiting for this one!!!"
Meanwhile, Real Housewives of New York star Bethenny Frankel even alluded to her own drama with Kudrow, commenting: "That's crazy. She was on my talk show and I had a crazy experience also."
These celebrities can't keep leaving us hanging! Why didn't Frankel elaborate? Will we ever know why Kudrow suddenly has such a bad reputation? So. Many. Questions.