Taylor Swift is to be Maid of Honour for her best friend.

The 'Shake It Off' hitmaker has agreed to be by the side of her pal Britany Maack when she marries her fiance after receiving a touching note from her ''sister''.

The note sent by Britany read: ''Taylor, You are more than a friend, you are more than a best friend. You are my sister. I cannot imagine having any one else by my side on my wedding day... Will you be my maid of honor?''

Taylor, 25, posted the note on her Instagram page, alongside a photograph as the two pals when they were children and wrote: ''YEAH I WILL. @britmaack.''

As well as Britany, Taylor has a number of other close friends and Victoria's Secret model Karlie Kloss recently revealed she had previously banned the 'Out of the Woods' hitmaker from moving to London and instead convinced her to move to New York City.

She said: ''She travels a lot. She almost moved to London and I said, 'Nope, not happening.' She now lives in New York.''

The pair are so close that Karlie even has her own room at Taylor's apartment in Tribeca, and thinks the blonde beauty is great at decorating.

She said: ''She's really good at decorating her house. Her house is really great.''