Taylor Swift is self-designing her new apartment in Nashville, Tennessee in a way only a 20 year old millionaire could.

Taylor is having a moat-like pond built around her living room fireplace and she's considering adding a few exotic koi fish.

The 4,062-square-foot penthouse is in the luxurious 18-story Adelicia apartment building.

Taylor said: ''You step on a stepping stone in the pond in order to get on a spiral staircase, which takes you up to the human-sized bird cage observatory. They're delivering a human-sized birdcage, which I'll put a brass telescope in. The ceiling of my living room is painted like the night sky."