 Most recently, the song was also featured in the Season 7 opener of NBC's "Scrubs" and in an episode of Royal Pains.Kearney's single, "Breathe In, Breathe Out", debuted in September 2007, and marks the singer's fourth and highest profile placement in "Grey's Anatomy".The song is currently used as the theme in television promotions for the series' fourth season, including a music video that premiered on September 19 during the fourth season preview.