Bück dich and Du hast are both songs from what Neue Deutsche Härte band Rammstein album?
Bück dich: "Bück dich" ("Bend down," "Bend over") is a song by the Neue Deutsche Härte band Rammstein that first appeared on their second studio album, "Sehnsucht", and as one of the b-sides to the CD version of "Du hast". Du hast: "Du hast" (German: "You Have" ) is a song by German industrial metal band Rammstein. Du hast:  It was released as the second single from their second album "Sehnsucht" (1997).
"Sehnsucht"