"Ich will" should be Flake, but I always thought they fucked up with having Paul on the cover twice. I'll try to post some more pics from those sessions as I believe there are some unseen ones in the tourbook.
I've also never seen a hype sticker on the Sonne single so far to answer your question, @SM_Rollinger.
Also the promo disc for the music video has Flake on it:
Olli is only used on a music video sampler: