Brother John has played with Eric Clapton, Steve Miller, the Black Crowes, and acquired ringing endorsements from many other musicians of renown. For example: Led Zeppelin vocalist Robert Plant had seen John play with Otis Rush at the Jazz Café in London. When Plant and Kattke met in person at the United Center in Chicago, Plant told Kattke: “You play a mean guitar!” George Benson came to the jam session that Kattke hosts at Buddy Guy’s Legends in Chicago. After hearing the opening set that John played with his band, Benson told him: “You’re fearless! I thought I was fearless! You’re fearless!