Prepare to have a heart attack, Lovatics! While Britney Spears and L.A. Reid may be abandoning their posts at The X Factor, HollywoodLife.com has exclusively learned that Demi Lovato is “mostly a lock” to return as a judge in season three — and that’s not all the former Sonny With A Chance star has up her sleeve! According to our source, if Demi does return to The X Factor, she’ll be doing some major collaborating with girl-group Fifth Harmony! Even though the girls were on Team Simon Cowell last season, Demi will “most likely” sing on one of the group’s singles and share the X Factor stage with them for a live performance. We spoke to Demi in Dec. 2012, and she told us she’d be open to the idea of collaborating with the girls.

“I am always open to collaborations, and I would like to show these girls a ‘Thank you,’ and show them how much they have done for me,” Demi told us. “If I can help in [an] album in any way or to collaborate since they are so down to earth girls.”

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