Jay Z supports Obama with free benefit concerts this weekend 

Jay Z will be performing for free in support of Senator Obama's Presidential campaign this weekend, according to sources.  The free concerts will take place in Detroit on Saturday (Oct. 4) and Miami on Saturday (Oct. 5).  According to the source, tickets to the concerts will be available at Obama’s local campaign offices.

Jay-Z and Obama have shown a mutual admiration for one another.  Jay Z has included him in his songs and Obama recently admitted to listening to Jay Z's songs on his ipod and many refer to his famous "brushing his shoulders off" at one of his rallies as a sign that he is a Jay Z fan.  

VIDEO: Brush Your Shoulders Off - Obama Tribute