The track was produced by Keys and Splash and is based around a sample from The Temprees' 1972 song "(Girl) I Love You", written by Josephine Bridges, Carl Hampton, and Tom Nixon. The song ranked at number twenty-three on Rolling Stone's list of the 100 Best Songs of 2007, and was nominated for Song of the Year at the 2008 BET J Virtual Awards. It impacted mainstream urban radio on April 21, 2008. The song was a critical and commercial success in the US entering both the Billboard Hot 100 and Billboard Pop 100 charts and climbing to #3 on the Billboard Hot R&B Songs chart. Keys performed the song on Late Show with David Letterman on April 29, 2008. Swizz Beatz produced a remix of "Teenage Love Affair" featuring LL Cool J, using a sample from Slick Rick's 1988 song "Teenage Love". After failing to pick up sufficient airplay in the UK, the physical single was canceled there and the song charted at number one hundred and ninety-nine.
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