Last week Senegalese singer Youssou N'Dour announced his candidacy for the president of Senegal. He's far from the first rock star to try and cross over into politics. Sometimes they are successful (Martha Reeves, Sonny Bono), but more often they discover that voters just aren't willing to take their candidacy all that seriously. Click through for a gallery of rock stars who tried to make the transition. 

By Andy Greene