Demi Lovato is in full promo mode - the pop singer is posting photos on her Twitter promoting her latest single, "Confident." And Demi Lovato looks like the queen of confidence in the photos, which show off her recent weight loss.

The promo photos for the release of her single "Confident" (see below) feature Demi Lovato decked out in bold make-up and a high-waisted bikini, fully showing off her curves. She looks sexy and fit, and definitely looks like she's lost weight recently.

#CONFIDENT. OCT 16TH!!!!! Pre-order now!!!! https://t.co/KwOryUceRi pic.twitter.com/U7BUOMqNZi

— Demi Lovato (@ddlovato) August 28, 2015

#CoolForTheSummer https://t.co/Eljbo6MjbO pic.twitter.com/yTaj1D3sn0 — Demi Lovato (@ddlovato) August 17, 2015

#COOLFORTHESUMMER https://t.co/Eljbo6MjbO pic.twitter.com/nFDD2ty9gS

— Demi Lovato (@ddlovato) August 15, 2015

#Confident is available for pre-order on @iTunes now!!!!! https://t.co/KwOryUceRi pic.twitter.com/738fukOF7K — Demi Lovato (@ddlovato) August 28, 2015

Demi has previously talked about her curves, both in interviews and in Instagram captions.

In one picture, she's laying down in a floral-patterned romper with one leg bent, showing off a lot of skin.

"Learn to lurrrrrvveee yerrrrr currrrrvveees," [sic] Lovato wrote on Instagram. "I actually used to hate them...but then a special someone helped me learn how to love them...and he sure loves them....#squats #COOLFORTHESUMMER."

Lovato also shared her views on thigh gaps on Instagram when she posted a photo of herself from her Australia show.

"Ph--kkk yo thigh gap...#latinacurves," said Lovato.

She told E! News: "For some reason, this whole thigh gap thing has kind of swept over what people think is beautiful and if you have that naturally, then that's totally fine, you're still beautiful. My body doesn't naturally have that."

Demi has also spoken about her recent weight loss, and how she feels healthier than she has in ages.

"Wait.... So you mean to tell me eating healthy and working out works? You don't even need diet pills! Who woulda thunk..." she wrote on Twitter, according to Fashion & Style.

According to Latinos Health, Demi told Fitness Magazine: "Exercising has been so important for my recovery, both physically and mentally. On show days I count my concert as a workout, but on my off days I try to work out once in the morning and again at night. It can be a lot between performing and travelling, so I'm careful not to push myself too hard."

She added, "Be patient, because real change takes time. I used to Google things like 'How to lose weight in a week,' but the world just doesn't work that way. If you want to lose weight, you've got to work for it. If you want to get stronger, you've got work for it. Any other way isn't going to be healthy, and it's not going to last," she said.