The Shake It Off hitmaker was offered the huge sum to sing two songs of her choosing and mingle with the bride and groom, according to the U.K.'s Sunday Express newspaper.

Instead, she chose to sing for free at the christening of actress Jaime King's baby Leo, who the singer is godmother to.

She is said to have performed Love Story, I Knew You Were Trouble and hummed a lullaby to the one-month-old baby at the event.