The 'Shake It Off' singer couldn't resist sharing her happy news via Instagram, after actress Jaime asked her to be godmother to her unborn son or daughter.
A thrilled Taylor shared a picture of herself cradling Jaime's baby bump with the caption: "Guess who just got named Godmother of this little one..... (ME)."
Jaime shared another picture on her own Instagram page, saying: "Taylor will forever be looking over our new baby."
What an honour!
Jaime is just one of Taylor's many, many celebrity friends. Other close pals of the popstar include Karlie Kloss, Selena Gomez, Demi Lovato, Ed Sheeran, Sam Smith, Ellie Goulding and Cara Delevingne.
Taylor's back in the US after performing at the BRIT Awards last week, where she opened the show with a rendition of hit single 'Blank Space'.
She also took home the 'Best International Female' award.
Jaime, meanwhile, announced in February that she and husband Kyle Newman are expecting their second child together. They are already parents to son James, one.
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