Demi Lovato has treated fans to another look at her upcoming new music video.

The singer has shot a promo clip for her latest single 'Stone Cold'.

It is due to land on Tuesday (February 23), but the US star has now given fans a second preview.

Posting the teaser on Twitter overnight, Lovato wrote:

"My favorite song on the album and the most emotional video I've ever shot. #StoneColdVideo: Feb. 23, 2016."

Lovato meanwhile recently opened up on when she feels the most beautiful.

The singer said in an interview: "I feel the most beautiful when I’m naked. Just completely stripped down, completely organic, me.

"That’s when I feel the most confident, because that’s the most natural state that I could possibly get in.”

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Watch the preview below: