"Sparks" is a song recorded by American singer Hilary Duff for her fifth studio album, Breathe In. Breathe Out. (2015). It was written and produced by Christian "Bloodshy" Karlsson and Peter Thomas, with additional writing from Tove Lo and Sam Shrieve, and co-production from Svidden. The song was released on April 7, 2015 by RCA Records, as the album's lead single.

The music video was released on May 14, 2015, and features Duff on various Tinder dates. Less than a month later, Duff released a "Fan-Demanded" version video, which does not show the Tinder material and instead focuses more on Hilary and her choreographed dancing to the song. "Sparks" experienced only moderate success on the Billboard Hot 100, peaking at 93, but became her fourth top ten hit on the dance chart. It additionally charted in Australia and Canada.

On July 23, 2014, Duff announced that she had signed a recording contract with RCA Records and would be releasing her first single in five years, "Chasing the Sun", on July 29. Later that same week, she revealed that she would finish and release her fifth studio album, her first since 2007's Dignity, in between filming of her new television show, Younger. She planned to do a little bit of promotion for the album during this period, but would not begin a "full press push" until filming of the show wrapped on December 12. Less than a month after the release of "Chasing the Sun", Duff revealed that she would release a second single, "All About You", on August 12. She announced later that same month that the album would not be released in October as originally planned and that fans would have to wait a "few more months" for it to be released.

On January 10, 2015, Duff revealed that recording for the album would continue now that the filming of Younger was completed. While her music career was originally her primary focus, she had to "take a step back" while filming of the show was underway. According to Duff, she was disappointed that she never got a chance to "properly promote" the singles, but that their releases gave her "a little taste of it again" after "being out of the music game for seven years". "It’s just a balancing act of trying to have two careers that take up a lot of my time. And also being a mom — the most important one for me", Duff said. In late January, she travelled to Sweden, where she collaborated with Swedish singer Tove Lo and record producer Jason "Ginni" Gill. According to Duff, she "knocked out" about four songs while she was there that "created a cool vibe for the record".

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