Breathe In. Breathe Out.

Breathe In. Breathe Out. is the fifth studio album by American singer-songwriter Hilary Duff. It was released on June 12, 2015, by RCA Records. Duff initially began work on the album in January 2012, but after scrapping the songs she recorded, she resumed recording in September 2013 and continued throughout 2014 and 2015. After being signed to RCA Records in 2014, she released the singles, "Chasing the Sun" and "All About You". Following their releases, Duff continued recording new material, and in April 2015, she released the album's lead single, "Sparks".

Duff worked with a number of high-profile musicians on the album, with the album having co-writing credits from Ed Sheeran, Tove Lo, and Duff's long time collaborator Kara DioGuardi. Singer-songwriter Kendall Schmidt is featured on the final cut "Night Like This". The album also features writing and production on several tracks by Matthew Koma, whom Duff would later wed in 2019. Duff promoted Breathe In. Breathe Out. only by appearances on television talk-shows and through radio interviews, and did not tour in support of the album.

Musically, Breathe In. Breathe Out. is a dance-pop record with EDM and folk-pop elements. It received generally positive reviews from music critics, praising the album's production quality and the mix of genres on the record. The album charted within the top 10 in Australia, Canada, and the United States as well as the top 20 in Mexico and Spain.