Taylor Swift has been left stunned after seeing footage of a young mum attempting to silence her crying baby using her music.

The harassed mum posted the clip of her wailing newborn on YouTube.com and Swift, like thousands of others, could not believe it when the tot stopped crying when Swift's song Blank Space was turned up.

At one point, the mum stops the music and when her daughter starts crying again, she turns it back up, prompting the baby to stop and listen.

Swift loved the video and shared it on her Twitter.com page on Monday (02Mar15), along with the message, "This Is The Best Thing I Have Ever Seen."