"Mein Teil" (German for "My part" or "My share", slang for "My penis") is a song by German Neue Deutsche Härte band Rammstein. It was released as the lead single from their fourth studio album, Reise, Reise (2004), on 26 July 2004. "Mein Teil" attracted controversy in Germany; the media dubbed it "Das Kannibalenlied" ("The Cannibal-Song") due to its lyrics referring to the Armin Meiwes cannibalism case, which helped to boost it to second place in the German music charts after its release in early August 2004. It was also a number-one hit in Spain. Remixes of the song were done by Arthur Baker and the Pet Shop Boys. "Mein Teil" was nominated for Best Metal Performance at the 48th Grammy Awards but lost to Slipknot's "Before I Forget".

The song is inspired by the case of Armin Meiwes and Bernd Jürgen Armando Brandes. In March 2001, in Rotenburg an der Fulda, the two men aged in their 40s met each other, cut off and cooked Brandes' penis and consumed it together. Afterwards, Meiwes killed Brandes — with Brandes' permission — and ate his remains. As a result, Meiwes was sentenced to eight-and-a-half years in jail for manslaughter, but was later charged with murder and sentenced to life imprisonment. According to bassist Oliver "Ollie" Riedel, the song came about after "one of our members brought a newspaper to rehearsal and it had a story about the cannibal guy in it. We were fascinated, shocked and amused at the same time". Vocalist Till Lindemann stated, "It is so sick that it becomes fascinating and there just has to be a song about it". A prominent phrase in the song is "... denn du bist, was du isst, und ihr wisst, was es ist" ("Because you are what you eat, and you (pl.) know what it is").

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