Andy Cohen: I Saw Taylor Swift Throw Shade at Katy Perry at the Met Gala 2016 Afterparty

Andy Cohen Taylor Swift Katy Perry
Andy Cohen, Taylor Swift and Katy Perry Charles Sykes/Bravo/NBCU Photo Bank via Getty Images; John Shearer/Getty Images; Venturelli/FilmMagic

Andy Cohen is spilling the beans — and the tea. The Watch What Happens Live host claimed in his new book, Superficial: More Adventures From the Andy Cohen Diaries, that he witnessed Taylor Swift throw shade at her nemesis Katy Perry at the 2016 Met Gala afterparty.

In the memoir, Cohen, 48, says he and talent agent Bryan Lourd were waiting for Lady Gaga and Mark Ronson to perform at the New York City event in May when he approached Swift, 26, by the bar.

Superficial: More Adventures From the Andy Cohen Diaries
'Superficial: More Adventures From the Andy Cohen Diaries'

"Why I felt I needed to get involved I will never know (maybe I was auditioning for her squad?), but I innocently said exactly the wrong thing to her, which was: 'Your friend Katy is sitting in the corner and there's plenty of room around her,'" he wrote.

The "Shake It Off" singer then allegedly asked, "Katy who?"

"I said, 'Perry,' at which point she clearly let me know that she's the exact opposite of her friend," Cohen wrote. "I kind of gasped, realizing she was in the most famous feud of all the feuds."

The TV personality says he was "completely mortified" that his joke brought up the longtime quarrel, admitting that he "was just sticking my nose where it didn't belong."

Swift allegedly started to walk away but turned around and commanded Cohen "not to say a word about this on my show, and said that she's watching."

"I sputtered that I had no plans to say a word about it on my show — as a matter of fact, I silently vowed to stop playing into the hype that she created around her song 'Bad Blood,'" he wrote, adding, "She didn't threaten me about putting it in my book, so here we are."

As fans know, Swift and Perry, 32, have had their fair share of ups and downs — mostly downs — through the years. In a September 2014 interview with Rolling Stone, Swift heavily insinuated that the "Roar" songstress "tried to sabotage an entire arena tour" of hers by allegedly stealing some of her backup dancers, and that her hit "Bad Blood" was about the falling out. Two years later, Perry tweeted that she'd collaborate with her frenemy "if she says sorry."

The singers narrowly avoided another awkward run-in at Drake's 30th birthday bash last month, where Swift steered clear of both Perry and their mutual ex-boyfriend, John Mayer.

"Taylor stayed at her table [with the] crew she came with," an insider told Us. "Taylor was ready to party when she got there, but when she realized Katy and John were there, she just stayed put at her table. She didn't want to make a big scene and leave when she saw they were there too."

Superficial: More Adventures From the Andy Cohen Diaries is available in bookstores now.

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