Demi Lovato Explains How 'Give Your Heart a Break' Influenced 'Demi': Video

Singer calls breakout hit "good old American pop music."

While Demi Lovato continues to promote her fourth studio album, "Demi," with the hit lead single "Heart Attack," the pop star recently sat down with Walmart Soundcheck to discuss the enduring impact of her 2011 breakout single, "Give Your Heart a Break," and how it influenced her latest full-length.

"I think what resonated with pop fans was the lyrics are super catchy, and the beat, and everything," says Lovato. "It's good old American pop music, and that's what I have on this album."

"Give Your Heart a Break," which was featured on Lovato's 2011 album "Unbroken," is still her best-selling single with 1.9 million downloads sold, according to Nielsen SoundScan. "Heart Attack," meanwhile, has peaked at No. 10 on the Hot 100 chart, while "Demi" debuted on last week's Billboard 200 chart with 110,000 copies sold, her best sales week to date.

Visit Walmart Soundcheck for more with Lovato, including an exclusive live performance from Hollywood.