"Headsprung" is a song by American hip hop artist LL Cool J. It was released in June 2004 as the lead single from his eleventh album, The DEFinition. The song was a success on the charts, it peaked at number 16 on the Billboard Hot 100, number 4 on the Hot Rap Songs and number 7 on the Hot R&B/Hip-Hop Songs.

Keri Hilson did a cover of this song featuring Justin Timberlake, the cover was used as a remix with LL Cool J's 1st verse. A version of this song, however without Timberlake, has appears, renamed, as the title track for Hilson's 2009 compilation album, Ms. Keri.

AllMusic's David Jeffries praised the song as a change from the slow jams of LL's 10, highlighting the southern production and New York style vocal delivery as a great merger, concluding that, "Simple, club, crunk, and not the kind of revolution Timbaland or LL Cool J can crank out when on fire, but solid enough to put the rapper back on top of the beatbox." Nick Southall of Stylus Magazine said that it was "a hit but not a monster."

^*sales figures based on certification alone
^{^}shipments figures based on certification alone

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