"Unbreakable" is a song by American R&B-soul singer Alicia Keys from her live album, Unplugged (2005). Written by Keys, Kanye West, and Harold Lilly, the track features a Wurlitzer riff, and is built around a sample of Eddie Kendricks' 1977 song "Intimate Friends", written by Garry Glenn. It was released as the album's lead single in 2005 and peaked at number thirty-four on the U.S. Billboard Hot 100, becoming Keys' first single to miss the top twenty since 2002's "How Come You Don't Call Me", and failed to peak inside the top forty on Billboard Pop 100. It was nevertheless a big success on the Hot R&B/Hip-Hop Songs chart, where it landed at number four.

Alicia Augello Cook, known professionally as Alicia Keys, is an American singer and songwriter. A classically trained pianist, Keys began composing songs when she was the age of 12 and was signed by Columbia Records at the age of 15. After disputes with the label, she signed with J Records to release her debut studio album, Songs in A Minor (2001). Met with critical acclaim and commercial success, the album sold over 12 million copies worldwide and won five awards at the 44th Annual Grammy Awards. It contained the Billboard Hot 100-number one single "Fallin'." Her second album, The Diary of Alicia Keys (2003) was met with continued success, selling eight million units worldwide and spawning the singles "You Don't Know My Name", "If I Ain't Got You", and "Diary". Its release earned an additional four Grammy Awards.