Rhythmix is a United Kingdom music charity that provides a range of music-making opportunities for young people across the South East region.

Rhythmix has five main fields of work: In 2011, Rhythmix came to widespread media attention when the television presenter and music promoter Simon Cowell attempted to trademark the name Rhythmix in relation to a girl group that featured on the eighth series of The X Factor.

After a legal challenge, Cowell's company, Syco, dropped the trademarking application and the group agreed to change their name to Little Mix.

[1] In response to the X Factor naming controversy, an online protest was launched that promoted the Nirvana single "Smells Like Teen Spirit" to become 2011 Christmas number one in the UK Singles Chart.

This was an attempt to emulate a successful 2009 Facebook campaign that promoted Rage Against the Machine's song "Killing in the Name" and prevented the X Factor winner from taking the spot.