The singer looks stunning as she poses in swimwear for her new eyewear range

DEMI Lovato looks incredible in a new photoshoot for her sunglasses range with DIFF Eyewear.

The singer is modelling the collection she designed, but her impressive figure has stolen the limelight.

In one shot, Demi wears a rainbow striped swimming costume while she poses in a pool sporting the sunnies.

In another, she shows off her impressive cleavage in a plunging black swimming costume.

In a third shot, Demi poses in a red, floral print swimming costume, again with a low cut front.

She also poses in a backless swimming costume in another picture from the shoot.

For every pair of sunglasses sold by DIFF eyewear, the brand will donate a pair of reading glasses in partnership with the non-profit organization ‘Eyes on Africa,’ which provides glasses to African communities with no access to vision care.

Posting about the collection, Demi wrote on Instagram: “I’m so excited to announce the collection I designed with @diffeyewear is now live on diffeyewear.com!

“This project is special to me because a pair of reading glasses are given to someone in need with every pair of sunnies sold.

“Click the link in my bio to shop the #DIFFxDEMI collection now!”

Demi, 25, has also been open about her body insecurities in the past.

In an emotional Instagram post in January, she wrote: “So, I’m insecure about my legs in this picture but I’m posting it because I look so happy and this year I’ve decided I’m letting go of my perfectionism and embracing freedom from self criticism.

“Learning to love my body the way it is is challenging but life changing.

“Giving up my eating disorder has been the most challenging journey of my life but I work every day towards solid recovery even if I mess up sometimes.

“Today I’m feeling strong. You all can do it too. It IS possible.

“Thank you God for this new chapter in my life. #EDrecovery #happyAF.”