Pop songstress and former Disney starlet Demi Lovato will rejoin the panel of 'X Factor USA' as a judge on the forthcoming new series.

The 'Skyscraper' hitmaker originally joined the show last year with Britney Spears, who has since bowed out of her judging responsibilities, but Simon Cowell has now confirmed that Lovato has signed up for what will be the third season.

Speaking about the exciting news, the music mogul said he's delighted to have her back as she's a fantastic addition to the panel: "I couldn't be happier that Demi wants to come back this year. She's a superstar in her own right and was a fantastic mentor last year. Even though she can be really, really annoying, I truly enjoyed working with her and so did the artists. I'm especially pleased she's back."

Lovato added: "I am so excited to return as a judge and mentor on The X Factor. Last season was an unbelievable experience and I really enjoyed developing personal relationships with the contestants and the panel. I look forward to taking my previous experience and applying it to make this season even better."

Listen to her new single, 'Heart Attack', here: