"All My Life" is a song recorded by American R&B duo K-Ci & JoJo. The track was produced and written by Joel "JoJo" Hailey and Rory Bennett for K-Ci & JoJo's debut studio album, Love Always (1997). It samples Paul Anka's 1983 hit, "Hold Me 'Til the Mornin' Comes".

The song was released physically as airplay on December 1997 and January 6, 1998 as the third single from the album through MCA Records. "All My Life" is an R&B, and soul song. Music critics have claimed this as the duo's most successful song of their career.

"All My Life" was a commercial success, and topped the Billboard Hot 100 for three consecutive weeks. It was certified platinum in the US, and was the duo's longest-running number-one single of their career. "All My Life" performed well internationally, reaching top ten in many countries, including Australia, Belgium, Netherlands, New Zealand, Norway, Sweden, Switzerland, as well as the United Kingdom and achieving platinum status in Australia and gold status in Sweden.

"The song was originally supposed to be used for another artist, a female artist on A&M Records. But we listened to it after we got out of the studio and it was like, 'I'm keeping this, this is too hot.'"

In 1997, K-Ci & JoJo traveled to various recording studios in California and New York with multiple relatively unknown record producers for recording of their debut album, Love Always. Joel initially wrote the song, using his daughter as inspiration. "All My Life" was originally written by Joel Hailey for a female artist on A&M Records, but ultimately decided to keep the song. "All My Life" was recorded at Audio Achievements in Torrance, California. Rory Bennett contributed on the song by helping the writing and the production. The piano introduction contains an interpolation of "Cliffs of Dover" by American guitarist Eric Johnson performed by Bruce Hornsby.

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