Is Demi Lovato Hispanic?

I know Selena Gomez's parents are from Latin America and that's why Selena looks hispanic.
I wanted to know if Demi Lovato is hispanic or not. She doesn't look like hispanic but my sister said she is.
Where was Demi Lovato born, is she hispanic?

Demi Lovato was born in Dallas, Texas.
She is of Hispanic, Irish and Italian descent. Her mother, Dianna Hart, was a Dallas Cowboys Cheerleader and country recording artist; her father, Patrick, moved to New Mexico after their marriage ended in 1994. She is currently home schooled by a tutor due to her career.

She said this regarding her relationship with Selena Gomez:

"We’re both Hispanic and have dark hair, it's just one of those things. We would drive three hours to an audition in Austin and my mom would say if one of us gets something it's better than none of us getting something. So whoever gets it, we’re happy for each other."

Her real name is Demetria Devonne Lovato.