All of this also explains the popularity of WLAC in many areas at Night. Many R & B stations were Daytimers, or Class IVs with 250 watt Night signals. In Michigan, many markets didn't have more than one full time Top 40 station, and that was often a Chicken Rocker. Rock stars like Bob Seger listened to CKLW Days along with WPAG and WAAM growing up in Ann Arbor, but as another radio archivist observed, WPAG and the others "ran down at Sundown". Detroit stations reduced power and or went to a different DA pattern, and they listened to WLAC, WLS, and WCFL. Flint had R & B WAMM, a Daytimer. Mark Farner and Don Brewer of Grand Funk Railroad listened to WAMM in the parking lot of the Musicians Local Union Office, waiting to line up gigs when they opened, where the signal from their towers overloaded their radios, the only station they could get there. It influenced them, but it was gone at Night, and it was WLAC to hear John R at Night. Howard Tate, James Brown, Clarence Reid, and the Soul Brothers Six were some artists that influenced them. In Grand Rapids, Lansing, and Kalamazoo it was also WLS, WCFL, and WLAC at Night for R & B. Then FM started to take over.