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Demi Lovato won't reveal if 'Ruin the Friendship' is about Nick Jonas

Nick Jonas (L) and Demi Lovato attend The 27th Annual GLAAD Media Awards in Beverly Hills, California, on April 2, 2016. / AFP / VALERIE MACON (Photo credit should read VALERIE MACON/AFP/Getty Images)

Nick Jonas (L) and Demi Lovato attend The 27th Annual GLAAD Media Awards in Beverly Hills, California, on April 2, 2016. / AFP / VALERIE MACON (Photo credit should read VALERIE MACON/AFP/Getty Images)

Demi Lovato is refusing to confirm or deny her saucy new song Ruin The Friendship is about her pal Nick Jonas.

Fans have been talking about the suggestive track for weeks, with many convinced it’s about her relationship with her former tour mate - the brother of the singer’s ex-boyfriend Joe Jonas.

Demi was quizzed about the song during a recent taping of The Ellen DeGeneres Show in America, but she stayed mum on the subject.

“Something that I will always keep to myself is who I write my songs about,” the Cool for the Summer star said.

Ellen pressed on, stating, “I see, so it’s probably about him. You’re best friends?” prompting her guest to add, “Yeah.”

Ruin the Friendship features on Demi’s newly-released sixth album, Tell Me You Love Me, and features the lyrics: “Put down your cigar and pick me up/Play me your guitar, that song I love/Thirsty for your love/Fill up my cup...”

She adds: “Your body’s looking good tonight/I’m thinkin’ we should cross the line/Let’s ruin the friendship... What’s taken us all this time?”

Demi’s chat with DeGeneres airs in America on Wednesday.