ONLY KRISTIN'S HAIRDRESSER KNOWS-&TELLS!

KWISS-AND-TELL-ALL K Kristin Cavallari has fired up some fury in former flames Jason Statham and Morgan Wallen after she dished details of what she says were secret flings the stars had hoped would stay buried! Insiders tattle the 37-year-old reality TV diva stirred up drama by giving her BFF and longtime hairstylist Justin Anderson free rein to spill the tea about all the clandestine hanky-panky in her past on TikTok just to boost her own buzz.

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In a Suspect Challenge video, Justin outed Kristin's fling with action star Jason, 57, calling him her "hottest hookup that she's never told anybody about!" Sources close to The Transporter hunk, who's been in a relationship with model Rosie Huntington-Whiteley since 2010, say he is fuming over how she's dredged up details of their short-lived but sizzling sessions in the sheets in 2009.