Lady Gaga - G.U.Y. (Live at Roseland Ballroom) 

When I first heard that part in G.U.Y. I was like "lol wtf is she saying that sounds so awkward." Now I realize how awesome "NEIN ZEDD" is, it's like the ultimate climax to the song :D

What does she want to say by nein zedd

I'm in charge like a G.U.Y

I'll lay down face up this time

Under you like a G.U.Y.

It's nein Zedd. The German word for no.