"
Fireflies" was released as the album's first single on July 14, 2009. It climbed the
Billboard Hot 100 slowly until reaching No. 7 and leaping to No. 1 the following week. as well as topping the iTunes Top 100 Chart for several weeks. "Fireflies" was originally released as a free iTunes digital download the week the album had its digital release in the U.S., which could have contributed to the single's massive success. and reached No. 1 on the Official UK Singles Chart on January 24, 2010. On January 25, 2023, the song was certified Diamond by the
Recording Industry Association of America denoting sales of 10 million units. "
Vanilla Twilight" was released as the album's second single on January 26, 2010, to radio, the same day that the deluxe edition of
Ocean Eyes hit stores. During the same week that "Fireflies" topped the Hot 100, "Vanilla Twilight" debuted at No. 95. The song re-entered the chart and peaked at No. 72 on the week ending January 9, 2010. It was certified platinum by the RIAA in January 2023. "Umbrella Beach" was originally released promotionally on November 22, 2009, preceding the release of the official first single "Fireflies." An exclusive remix created by Kenny Hayes is included on the single release. A music video was released for the song and unlike "Fireflies" and "Vanilla Twilight", Young does not appear in the video, aside from a few photos.
Promotional singles "
Hot Air Balloon" premiered on the
AOL Spinner Tastemaker website on May 1, 2009. The song debuted at number one on
AOL Music's Top 40 Songs Chart with more than 270,000 streams in the first week and has sold over 12,400 copies. The track was later released as a digital-only promotional single on May 5, 2009, leading up to the release of the album, though it did not appear on the album. "Strawberry Avalanche" premiered exclusively via
Spin on June 1, 2009, The song sold over 9,000 copies as of July 2009. "
Hello Seattle" was released in December 2009, as the fourth and final promotional single. The song reached number six on the US
Billboard Bubbling Under Hot 100 Singles chart and was certified Gold by the RIAA. ==Commercial performance==