Demi Lovato's new single is about falling in love (and was co-written by Nikki Williams)

Demi Lovato's been chatting about her (hopefully amazing) new single 'Heart Attack' with MTV.

It's not the most revealing interview, granted, but we do learn that the title "is just about falling in love and taking that risk".

There's a tiny bit more about it all too: "But, she's terrified and, by 'she,' I mean me. But, I think everyone comes to a point where they feel very vul­ner­able in falling in love and that's what I'm talking about."

Fascinating stuff.

'Heart Attack' was co-written by Lovato, Mitch Allan, Jason Evigan, Sean Douglas and Nikki Williams of 'Kill, Fuck, Marry' 'fame'.

It's being played for the first time on March 4, which isn't that long to wait really.