Wikipedia
"Auflösen" (Break up) is a song by Die Toten Hosen, namely a duet between Campino and Birgit Minichmayr. It's the third single and the eighth track from the album In aller Stille. It reached no.38 in Germany and no.36 in Austria.
This is also the first duet for the band. It differs from the others songs on the album greatly because of the extreme tenderness of it, while most of the album is quite loud. The song describes, how shallow a physical relationship between a man and a woman is, as it doesn't really make a difference between them, if they would break up.
The song also features Raphael Zweifel on cello and Hans Steingen on piano, although in the video it is played by Esther Kim, who has supported Die Toten Hosen in concerts and also played the piano, when the band and Minichmayr performed the song in the Echo awards ceremony of 2009.