"Such Great Heights" was the album's first single, released as a physical, four-track CD single in January 2003. The duo both jokingly referred to it as "the hit" of the album when writing it. The disc charted on "Billboard" Hot 100 Singles Sales chart, a ranking that only measured in-store purchases. Sub Pop offered a free download of the song on their official website, which had been downloaded over nine million times by August 2005; over four million users downloaded the song from the label's MySpace page. In January 2004, influential L.A. radio station KROQ-FM began playing "Such Great Heights", which bolstered the album's popularity. [An acoustic rendition of the tune by Iron & Wine aided in boosting the its profile; both were simultaneously popular, with Iron & Wine's version were both in the film and soundtrack for "Garden State", as well as in television advertisement for M&M's. The original version was licensed for commercials for Target, Ask.com, UPS, Telstra, and Kaiser Permanente. The song was the original theme song to medical drama "Grey's Anatomy", and appears on its first soundtrack. Within two years of its debut, "Such Great Heights" was certified gold for sales of over 500,000 copies by the Recording Industry Association of America (RIAA). "The District Sleeps Alone Tonight", the album's second single, peaked at number 3 on the Hot Dance Singles Sales chart.