Brock appears on Mimicking Birds' latest?

Modest Mouse lead singer/guitarist sneaks his way on to Mimicking Birds lead singer/guitarists latest song "The Loop".

Perhaps by now you have heard of Mimicking Birds, the Portland-based easy-indie band that has seemingly appropriated a Brockian guitar part for "The Loop's" main hook. But what you may not have heard is the subtle vocal additions to the song on the Glacial Pace site.
For one reason or another, Brock's vocals show up in the form of a faint howl. Later, a creeky door closes and a few subtly textured Wicks Guitar parts seem to work their way into the mix.

Did Brock add them? I'm assuming so. Does Lacy know? I'm sure he does. What does this mean? Who the eff knows. But one thing's for sure: The Loop streaming on Glacial Pace is different than the version on MySpace. Just enjoy the music. It is my hope that Isaac Brock and the meaning of life will soon reveal themselves.