Edge - Underwater I Drown.
I saw it on the 'Drummers Delight' demo video on RhythmAuthors website and really want to play it. The demo of their song comes on at about 4:10. I really like the first song on the demo too. I actually like a lot of them. Hope to see these on the PS3 soon.
If you haven't seen the video, check it out. Lots of cool songs: