Greg Kot has been the music critic at the Chicago Tribune since 1990 and is the cohost of the nationally syndicated "Sound Opinions." He has written several books, including ""Ripped: How the Wired Generation Revolutionized Music" and "Wilco: Learning How to Die.? Kot is currently working on the biography ?I'll Take You There: Mavis Staples, the Staple Singers, and the March up Freedom?s Highway,? to be published by Scribner in 2014.