Taylor Swift and her pals know style ... dressing up in honor of the pop star at an "Eras" tour-themed party -- with Brittany and Patrick Mahomes paying homage to a viral moment.
Mrs. Mahomes posted several photos from the party to her Instagram just about an hour ago ... showing off her silver outfit covered in fringe -- clearly an interpretation of T-Swift's own outfits on tour.
Brittany had Patrick dressed up too ... black tux with a white undershirt and bow tie -- complete with a black top hat hanging off his thick curls.