The 21-year-old singer admitted she loves to be outdoors and finds it the best exercise strategy.
She said to America's OK! magazine: 'Being able to get outside and not be inside where there's the TV and there's the computer and there's your iPod is great.
'It's nice to stay inside and it's nice to walk around, and especially because I have my two top dogs, I have to go outside constantly. Being able to go outside to walk with them and feel nature is great.
'It's nice to be able to go and walk and feel the breeze and see the trees. It's actually a nice gift. As soon as I get up and walk around, I automatically feel better, I feel more energised... it's almost like I've been recharged.'