Demi Lovato has laughed off her photo hack - insisting she doesn't care if the world sees a cleavage pic of her

While she has seemingly confirmed the hack took place, the 'Heart Attack' singer insists the pics are far from racy.

Taking to the micro-blogging site, she wrote: "I love how everyone's freaking out about one picture. It's not nude and it's just cleavage (sic)"

The 24-year-old pop beauty - who is dating MMA fighter Guilherme 'Bomba' Vasconcelos - also joked about how there are already images of her showing off her ample assets widely available to the public including a previous shoot for Vanity Fair magazine.

She added in another tweet: "Besides the world has seen me nude BY CHOICE before.. #vanityfair #nicetry #cleavagegameonpoint #myboobsarenteventhatbig #angles. (sic)"

According to various reports, Demi was seen posing on a bed in an unzipped hooded top in the shot.

However, it's not the first time the brunette beauty has been caught up in a photo hack.

In 2013, pictures surfaced of her in bed with her ex-boyfriend Wilmer Valderrama, which were reportedly meant to only be shared with her partner.

At the time, the hacker told RadarOnline: "These are Demi. The collection I have show some nude, including face, some including parts of the body Demi is known for - tattoos, butt, chin.

"Then, I have pictures of her getting rowdy ... I can guarantee you these photos are legitimately of Demi."

Demi joins a long list of celebrities who have been targeted by online bullies including most recently 'Beauty and the Beast' star Emma Watson, Mischa Barton and Amanda Seyfried.