Well, I've known Jeff since the Uncle Tupelo days, but never got the opportunity to play with him until "Summerteeth". That's me at the end of "Pieholden Suite". Then, last year, I did a session for a band called The M's at The Loft. About 2 weeks later, when Wilco was rehearsing for the Residency, Jeff realized "Hey, some of these songs need horns." Steve, from the M's, works for Wilco doing monitors. He mentioned my name. And the rest is, as they say, hysteria. So, it was a fortuitous combination of serendipity and who-ya-know. That's Chicago for you.