Demi Lovato's boyfriend is in new video

Los Angeles - Demi Lovato's boyfriend makes a cameo in her new music video.

The 21-year-old singer unveiled the video for her duet with Cher Lloyd, Really Don't Care, on Friday, which features a number of other celebrities, including Travis Barker, Kat Graham and her on-again, off-again beau Wilmer Valderrama.

The brunette beauty can been seen cosying up to the former That 70s Show star as he wraps his arms around her with a huge smile on his face in the brief scene.

The 34-year-old actor quietly rekindled his relationship with the former X Factor USA judge in February 2013, but they rarely discuss their romance.

They first started dating in 2010 shortly after Demi's split from Joe Jonas. They split up after a few months but were linked again in 2011 before they split again.

Wilmer, who previously dated a string of other famous women, including Lindsay Lohan and Ashlee Simpson, sparked rumours he was planning to propose to the singer in December after he was spotted buying a diamond ring from Tiffany & Co, which he had engraved with a special message reading: "With you and by you always."

His appearance in the video indicates their relationship is still going strong, but the singer admitted that her new song was originally a "breakup song".

Lovato told E! News: "When I originally wrote it, it was a breakup song. But now I have sung it so many times that it kind of no longer has a significance in that sort of way. When I sing it, I always want to inspire and empower."

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