The 20-year-old singer is enjoying living alone for the first time in her life because she can chat to herself whenever she likes.
The musician - who is rumoured to be dating actor Jake Gyllenhaal - confessed: "Living alone you can do so many fantastic things.
"You can walk around and have conversationswith yourself and, like, sing your thoughts - I think I`m the only one who does that."
But the country star, who has a fish pond in her sitting room and a conservatory in the shape of a birdcage at her apartment in Nashville, Tennessee, claims she doesn`t expect to have any wild parties at her swanky pad.
She said: "I have the deeply engrained fear of getting into trouble and being sent to the principal`s office of life."
And the clean-living beauty says the best thing about turning 21 next month isn`t that she can legally drink alcohol - but that she will be allowed to go to more concerts.
She added to US talk show host Chelsea Handler: "I get to go to the concerts now that my friends used to leave me at home for."