Bob Seger fans who attended the fourth stop of the tour at Grand Rapids' Van Andel Arena Saturday were treated to a bonus.  Michigan superstar Kid Rock joined Bob on stage, and the two sang "Real Mean Bottle", a country tune from Seger's 2006 album, "Face The Promise".  Check out the video, courtesy of M-Live, after the jump.

Although Kid Rock didn't make an appearance during Tuesday's show at the Dow Event Center in Saginaw, the show was just fine without him!  My review of that show is here