"Bleeding Love" is a pop/R&B ballad recorded by British singer Leona Lewis, from her debut album, Spirit. Co-written by Jesse McCartney and Ryan Tedder (and produced by Tedder), the song is the album's lead single (Lewis's official second single following "A Moment Like This"), released in the United Kingdom and Ireland in October 2007. Debuting at number one on the UK Singles Chart, "Bleeding Love" became the best-selling single of 2007 in the United Kingdom. Since the single's release, it became a major international hit, and was the best-selling single of 2008 worldwide. The single has reached number one in 33 countries, including the Republic of Ireland, Japan, Germany and the United States, making it only the second song in history to achieve this feat (after Elton John's "Candle in the Wind 1997"). The video first aired on 17 October 2007, and was uploaded to YouTube on the same day, on which it now has over 100 million views.

"Bleeding Love" has sold more than 1 million copies in the United Kingdom, and over 4 million digital downloads in the U.S., where it was the best selling digital song there in 2008. "Bleeding Love" has sold more than 9 million copies worldwide, putting it in the top five selling songs of the decade. It was named the 17th most successful song in the US from 2000–2009, on the Billboard Hot 100 Songs of the Decade. The song achieved a similar feat in the United Kingdom where it was the best-selling single of 2007, selling 788,000 copies. "Bleeding Love" has charted on the UK Singles Chart in three different years: in 2007 it peaked at #1; 2008 at #76; and 2009 at #97. "Bleeding Love" was nominated for Record of the Year and Best Female Pop Vocal Performance at the 51st Grammy Awards. At the 2008 Brit Awards it was nominated for Best British Single. It remains Lewis's biggest hit in the US to date, and her only single to reach the top ten of the Billboard Hot 100 and most successful single worldwide to date.