On Monday they were Shop Around by The Miracles & Ramblin' Gamblin' Man by Bob Seger System (if you listen really hard you can hear the "Freymeister" singing backup).
Did you guess?
Today it was Don't Worry Baby by the Beach Boys & If You Don't Know Me By Now by Harold Melvin & The Blue Notes featuring Teddy Pendergrass. Glenn is a big fan of Teddy's voice & met him before Teddy passed away a couple of years ago.