Demi Lovato's body confidence is the result of hard work.

The 'Cool for the Summer' hitmaker is feeling happy with her appearance at present and credits her confidence to hard work in the gym.

She said: ''I think I got here because I've worked really hard. I go to the gym every day, I'm taking care of myself, and I'm keeping healthy. I feel like when you put a lot of time and effort into being healthy, you feel it.

''When you're constantly bettering yourself, you're able to accept your body for what it is, and you learn to love it.''

Meanwhile, Demi admitted she has ''never been more in love'' than she is at the moment with boyfriend Wilmer Valderrama.

Speaking to Yahoo! Beauty, she added: ''I'm so excited to have him in my life as my best friend and my boyfriend.''

This comes shortly after Demi lavished praise on her boyfriend, saying she was ''grateful'' for his support.

She said: ''We don't share everything with the world. But we do feel comfortable to share a lot. With Wilmer and I and our relationship, he's extremely supportive in everything that I do. He makes me feel confident and beautiful. And I'm just really, really grateful for him.''