"Headlock" is a song by British singer-songwriter Imogen Heap, from her 2005 album Speak for Yourself. It was the third single from Speak for Yourself, after "Hide And Seek" and "Goodnight and Go". The video was filmed on July 11, 2006. The album also came with an a capella song called "Mic Check".
The drum and bass artist High Contrast remixed the song.