Demi Lovato on her obsessive and addictive personality

'Cool For The Summer' sensation Demi Lovato has revealed that she has always been 'an extreme person'.

During an interview with Cosmopolitan magazine, the beauty confessed that her addictive personality means that she has to 'monitor' anything she finds herself becoming too competitive with or obsessive about:

"I used it as an excuse not to work out. Like, 'I don't want to get too obsessed with it.' Everyone around me was like, 'Demi, you're lazy - you're not going to get obsessed.' But I monitor myself."

"I have always been an extreme person with everything I do. My workouts can't be easy or else I don't feel like I'm doing anything. If I'm cycling, I'm cycling hard. If I'm hiking, I'm not doing Runyon Canyon. That hike is cute. But if you go to Runyon and come back out with your face full of make-up still, then that wasn't a workout."

Lovato, meanwhile, also recently told Capital FM that while she is very much in love with her boyfriend Wilmer Valderrama, she doesn't know if marriage is on the cards just yet because they both have such hectic schedules:

"I feel like if I ever got engaged, I’d want to take a long time to plan. And being in our industry where it’s like constantly working, like I don’t know the next vacation I’m going to get, so I don’t know how someone’s supposed to plan their wedding.”

Watch her stunning new live lounge session below: