Demi Lovato's anxiety and depression have "come back in waves" during lockdown

She told CNN: "I'm a very social person and so not being able to see people, I've felt very isolated at times and my anxiety and depression has come back in waves and luckily I've done a lot of work and I have tools to help me out with that. But there are a lot of people who don't have those tools."

Demi urged others who are struggling not to be too hard on themselves.

She said: "Just have compassion. Know that you're not alone, that a lot of people are going through exactly what you're going through as well."

Meanwhile, the 28-year-old star admitted her new song, 'Commander in Chief', features everything she would love to say to President Donald Trump if she had the chance.

She said: "There's been so many times that I've wanted to write the President a letter or sit down with him and ask him these questions.

"And then I thought, I don't really actually want to do that and I thought one way that I could do that is writing a song and releasing it for the whole world to hear and then he has to answer those questions to everyone and not just me."

Demi insisted she isn't looking to provoke division with her lyrics but hopes she can encourage her fans to vote and be politically engaged.

She said: "We have to turn up and vote because it's so important that our voices are heard. And, honestly, for me, whether you are a Republican or Democrat, just get out and vote."