Lyric discussion by lukewagoneer 

Cover art for When You Wake Up Feeling Old lyrics by Wilco

I know I can't sing Until she brings the song to life And I blend with kings Id never change a thing

I think (possibly obvious) that this part is talking about music/probably almost ALL art (made by men) would probably not exist without a woman. We as men try to make beauty to present to women. Most songs, poems paintings et cetera are dedicated to/made in the likeness of a woman.

Perhaps the part about blending with kings is about his music being influenced by, and eventually joining the greats of rock/art.