"Muérdete La Lengua" (Translated to 'Bite Your Tongue' in English) is a rock song recorded by Chilean singer and song-writer Francisca Valenzuela and this song is the third official single from her first solo debut studio album, Muérdete La Lengua, released in Chile on September 15, 2007.

The song, written during 2005 by Francisca Valenzuela, was produced by Mauricio Durán and Francisco Durán, members of Chilean Rock band Los Bunkers.

The song was released on September 15, 2007 on Radios and Digital Download.

The official music video for the song "Muérdete La Lengua" was premiered on MTV Latin America on September 30, 2007 with high popularity in Chilean music channels.

The music video was directed by Igal Weitzman and in it Francisca is shown singing in psychedelic screenshoots with her face painted in white along with dogs.